21324240

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4231}}^1$

素因数の和:4257

約数の個数: 120

約数和(自身を含む): 81863808

約数和(自身を除く): 60539568

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 4231, 5040, 8462, 12693, 16924, 21155, 25386, 29617, 33848, 38079, 42310, 50772, 59234, 63465, 67696, 76158, 84620, 88851, 101544, 118468, 126930, 148085, 152316, 169240, 177702, 190395, 203088, 236936, 253860, 266553, 296170, 304632, 338480, 355404, 380790, 444255, 473872, 507720, 533106, 592340, 609264, 710808, 761580, 888510, 1015440, 1066212, 1184680, 1332765, 1421616, 1523160, 1777020, 2132424, 2369360, 2665530, 3046320, 3554040, 4264848, 5331060, 7108080, 10662120, 21324240]

約数ペア:

[(1, 21324240), (2, 10662120), (3, 7108080), (4, 5331060), (5, 4264848), (6, 3554040), (7, 3046320), (8, 2665530), (9, 2369360), (10, 2132424), (12, 1777020), (14, 1523160), (15, 1421616), (16, 1332765), (18, 1184680), (20, 1066212), (21, 1015440), (24, 888510), (28, 761580), (30, 710808), (35, 609264), (36, 592340), (40, 533106), (42, 507720), (45, 473872), (48, 444255), (56, 380790), (60, 355404), (63, 338480), (70, 304632), (72, 296170), (80, 266553), (84, 253860), (90, 236936), (105, 203088), (112, 190395), (120, 177702), (126, 169240), (140, 152316), (144, 148085), (168, 126930), (180, 118468), (210, 101544), (240, 88851), (252, 84620), (280, 76158), (315, 67696), (336, 63465), (360, 59234), (420, 50772), (504, 42310), (560, 38079), (630, 33848), (720, 29617), (840, 25386), (1008, 21155), (1260, 16924), (1680, 12693), (2520, 8462), (4231, 5040)]