21803230

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1153}}^1$

素因数の和:1252

約数の個数: 32

約数和(自身を含む): 41211648

約数和(自身を除く): 19408418

約数列:

[1, 2, 5, 10, 31, 61, 62, 122, 155, 305, 310, 610, 1153, 1891, 2306, 3782, 5765, 9455, 11530, 18910, 35743, 70333, 71486, 140666, 178715, 351665, 357430, 703330, 2180323, 4360646, 10901615, 21803230]

約数ペア:

[(1, 21803230), (2, 10901615), (5, 4360646), (10, 2180323), (31, 703330), (61, 357430), (62, 351665), (122, 178715), (155, 140666), (305, 71486), (310, 70333), (610, 35743), (1153, 18910), (1891, 11530), (2306, 9455), (3782, 5765)]