21027430

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{619}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 39283200

約数和(自身を除く): 18255770

約数列:

[1, 2, 5, 10, 43, 79, 86, 158, 215, 395, 430, 619, 790, 1238, 3095, 3397, 6190, 6794, 16985, 26617, 33970, 48901, 53234, 97802, 133085, 244505, 266170, 489010, 2102743, 4205486, 10513715, 21027430]

約数ペア:

[(1, 21027430), (2, 10513715), (5, 4205486), (10, 2102743), (43, 489010), (79, 266170), (86, 244505), (158, 133085), (215, 97802), (395, 53234), (430, 48901), (619, 33970), (790, 26617), (1238, 16985), (3095, 6794), (3397, 6190)]