21679292

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{359}}^1\times {\mathrm{487}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 39352320

約数和(自身を除く): 17673028

約数列:

[1, 2, 4, 31, 62, 124, 359, 487, 718, 974, 1436, 1948, 11129, 15097, 22258, 30194, 44516, 60388, 174833, 349666, 699332, 5419823, 10839646, 21679292]

約数ペア:

[(1, 21679292), (2, 10839646), (4, 5419823), (31, 699332), (62, 349666), (124, 174833), (359, 60388), (487, 44516), (718, 30194), (974, 22258), (1436, 15097), (1948, 11129)]