21863860

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{13171}}^1$

素因数の和:13263

約数の個数: 24

約数和(自身を含む): 46470816

約数和(自身を除く): 24606956

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 13171, 26342, 52684, 65855, 131710, 263420, 1093193, 2186386, 4372772, 5465965, 10931930, 21863860]

約数ペア:

[(1, 21863860), (2, 10931930), (4, 5465965), (5, 4372772), (10, 2186386), (20, 1093193), (83, 263420), (166, 131710), (332, 65855), (415, 52684), (830, 26342), (1660, 13171)]