21082790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1447}}^1$

素因数の和:1532

約数の個数: 32

約数和(自身を含む): 40034304

約数和(自身を除く): 18951514

約数列:

[1, 2, 5, 10, 31, 47, 62, 94, 155, 235, 310, 470, 1447, 1457, 2894, 2914, 7235, 7285, 14470, 14570, 44857, 68009, 89714, 136018, 224285, 340045, 448570, 680090, 2108279, 4216558, 10541395, 21082790]

約数ペア:

[(1, 21082790), (2, 10541395), (5, 4216558), (10, 2108279), (31, 680090), (47, 448570), (62, 340045), (94, 224285), (155, 136018), (235, 89714), (310, 68009), (470, 44857), (1447, 14570), (1457, 14470), (2894, 7285), (2914, 7235)]