21348436

素因数分解:

$2^2\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 38021760

約数和(自身を除く): 16673324

約数列:

[1, 2, 4, 137, 163, 239, 274, 326, 478, 548, 652, 956, 22331, 32743, 38957, 44662, 65486, 77914, 89324, 130972, 155828, 5337109, 10674218, 21348436]

約数ペア:

[(1, 21348436), (2, 10674218), (4, 5337109), (137, 155828), (163, 130972), (239, 89324), (274, 77914), (326, 65486), (478, 44662), (548, 38957), (652, 32743), (956, 22331)]