21099120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:703

約数の個数: 160

約数和(自身を含む): 78804480

約数和(自身を除く): 57705360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 661, 665, 760, 798, 840, 912, 1064, 1140, 1322, 1330, 1520, 1596, 1680, 1983, 1995, 2128, 2280, 2644, 2660, 3192, 3305, 3966, 3990, 4560, 4627, 5288, 5320, 6384, 6610, 7932, 7980, 9254, 9915, 10576, 10640, 12559, 13220, 13881, 15864, 15960, 18508, 19830, 23135, 25118, 26440, 27762, 31728, 31920, 37016, 37677, 39660, 46270, 50236, 52880, 55524, 62795, 69405, 74032, 75354, 79320, 87913, 92540, 100472, 111048, 125590, 138810, 150708, 158640, 175826, 185080, 188385, 200944, 222096, 251180, 263739, 277620, 301416, 351652, 370160, 376770, 439565, 502360, 527478, 555240, 602832, 703304, 753540, 879130, 1004720, 1054956, 1110480, 1318695, 1406608, 1507080, 1758260, 2109912, 2637390, 3014160, 3516520, 4219824, 5274780, 7033040, 10549560, 21099120]

約数ペア:

[(1, 21099120), (2, 10549560), (3, 7033040), (4, 5274780), (5, 4219824), (6, 3516520), (7, 3014160), (8, 2637390), (10, 2109912), (12, 1758260), (14, 1507080), (15, 1406608), (16, 1318695), (19, 1110480), (20, 1054956), (21, 1004720), (24, 879130), (28, 753540), (30, 703304), (35, 602832), (38, 555240), (40, 527478), (42, 502360), (48, 439565), (56, 376770), (57, 370160), (60, 351652), (70, 301416), (76, 277620), (80, 263739), (84, 251180), (95, 222096), (105, 200944), (112, 188385), (114, 185080), (120, 175826), (133, 158640), (140, 150708), (152, 138810), (168, 125590), (190, 111048), (210, 100472), (228, 92540), (240, 87913), (266, 79320), (280, 75354), (285, 74032), (304, 69405), (336, 62795), (380, 55524), (399, 52880), (420, 50236), (456, 46270), (532, 39660), (560, 37677), (570, 37016), (661, 31920), (665, 31728), (760, 27762), (798, 26440), (840, 25118), (912, 23135), (1064, 19830), (1140, 18508), (1322, 15960), (1330, 15864), (1520, 13881), (1596, 13220), (1680, 12559), (1983, 10640), (1995, 10576), (2128, 9915), (2280, 9254), (2644, 7980), (2660, 7932), (3192, 6610), (3305, 6384), (3966, 5320), (3990, 5288), (4560, 4627)]