21913080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1373}}^1$

素因数の和:1413

約数の個数: 128

約数和(自身を含む): 79142400

約数和(自身を除く): 57229320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1373, 1596, 1995, 2280, 2660, 2746, 3192, 3990, 4119, 5320, 5492, 6865, 7980, 8238, 9611, 10984, 13730, 15960, 16476, 19222, 20595, 26087, 27460, 28833, 32952, 38444, 41190, 48055, 52174, 54920, 57666, 76888, 78261, 82380, 96110, 104348, 115332, 130435, 144165, 156522, 164760, 182609, 192220, 208696, 230664, 260870, 288330, 313044, 365218, 384440, 391305, 521740, 547827, 576660, 626088, 730436, 782610, 913045, 1043480, 1095654, 1153320, 1460872, 1565220, 1826090, 2191308, 2739135, 3130440, 3652180, 4382616, 5478270, 7304360, 10956540, 21913080]

約数ペア:

[(1, 21913080), (2, 10956540), (3, 7304360), (4, 5478270), (5, 4382616), (6, 3652180), (7, 3130440), (8, 2739135), (10, 2191308), (12, 1826090), (14, 1565220), (15, 1460872), (19, 1153320), (20, 1095654), (21, 1043480), (24, 913045), (28, 782610), (30, 730436), (35, 626088), (38, 576660), (40, 547827), (42, 521740), (56, 391305), (57, 384440), (60, 365218), (70, 313044), (76, 288330), (84, 260870), (95, 230664), (105, 208696), (114, 192220), (120, 182609), (133, 164760), (140, 156522), (152, 144165), (168, 130435), (190, 115332), (210, 104348), (228, 96110), (266, 82380), (280, 78261), (285, 76888), (380, 57666), (399, 54920), (420, 52174), (456, 48055), (532, 41190), (570, 38444), (665, 32952), (760, 28833), (798, 27460), (840, 26087), (1064, 20595), (1140, 19222), (1330, 16476), (1373, 15960), (1596, 13730), (1995, 10984), (2280, 9611), (2660, 8238), (2746, 7980), (3192, 6865), (3990, 5492), (4119, 5320)]