21291330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{523}}^1$

素因数の和:615

約数の個数: 64

約数和(自身を含む): 54328320

約数和(自身を除く): 33036990

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 59, 69, 115, 118, 138, 177, 230, 295, 345, 354, 523, 590, 690, 885, 1046, 1357, 1569, 1770, 2615, 2714, 3138, 4071, 5230, 6785, 7845, 8142, 12029, 13570, 15690, 20355, 24058, 30857, 36087, 40710, 60145, 61714, 72174, 92571, 120290, 154285, 180435, 185142, 308570, 360870, 462855, 709711, 925710, 1419422, 2129133, 3548555, 4258266, 7097110, 10645665, 21291330]

約数ペア:

[(1, 21291330), (2, 10645665), (3, 7097110), (5, 4258266), (6, 3548555), (10, 2129133), (15, 1419422), (23, 925710), (30, 709711), (46, 462855), (59, 360870), (69, 308570), (115, 185142), (118, 180435), (138, 154285), (177, 120290), (230, 92571), (295, 72174), (345, 61714), (354, 60145), (523, 40710), (590, 36087), (690, 30857), (885, 24058), (1046, 20355), (1357, 15690), (1569, 13570), (1770, 12029), (2615, 8142), (2714, 7845), (3138, 6785), (4071, 5230)]