21198430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1871}}^1$

素因数の和:1992

約数の個数: 32

約数和(自身を含む): 42052608

約数和(自身を除く): 20854178

約数列:

[1, 2, 5, 10, 11, 22, 55, 103, 110, 206, 515, 1030, 1133, 1871, 2266, 3742, 5665, 9355, 11330, 18710, 20581, 41162, 102905, 192713, 205810, 385426, 963565, 1927130, 2119843, 4239686, 10599215, 21198430]

約数ペア:

[(1, 21198430), (2, 10599215), (5, 4239686), (10, 2119843), (11, 1927130), (22, 963565), (55, 385426), (103, 205810), (110, 192713), (206, 102905), (515, 41162), (1030, 20581), (1133, 18710), (1871, 11330), (2266, 9355), (3742, 5665)]