21582840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4861}}^1$

素因数の和:4912

約数の個数: 64

約数和(自身を含む): 66512160

約数和(自身を除く): 44929320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4861, 9722, 14583, 19444, 24305, 29166, 38888, 48610, 58332, 72915, 97220, 116664, 145830, 179857, 194440, 291660, 359714, 539571, 583320, 719428, 899285, 1079142, 1438856, 1798570, 2158284, 2697855, 3597140, 4316568, 5395710, 7194280, 10791420, 21582840]

約数ペア:

[(1, 21582840), (2, 10791420), (3, 7194280), (4, 5395710), (5, 4316568), (6, 3597140), (8, 2697855), (10, 2158284), (12, 1798570), (15, 1438856), (20, 1079142), (24, 899285), (30, 719428), (37, 583320), (40, 539571), (60, 359714), (74, 291660), (111, 194440), (120, 179857), (148, 145830), (185, 116664), (222, 97220), (296, 72915), (370, 58332), (444, 48610), (555, 38888), (740, 29166), (888, 24305), (1110, 19444), (1480, 14583), (2220, 9722), (4440, 4861)]