21996232

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1041

約数の個数: 32

約数和(自身を含む): 43944120

約数和(自身を除く): 21947888

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 197, 394, 788, 821, 1576, 1642, 3284, 3349, 6568, 6698, 13396, 13957, 26792, 27914, 55828, 111656, 161737, 323474, 646948, 1293896, 2749529, 5499058, 10998116, 21996232]

約数ペア:

[(1, 21996232), (2, 10998116), (4, 5499058), (8, 2749529), (17, 1293896), (34, 646948), (68, 323474), (136, 161737), (197, 111656), (394, 55828), (788, 27914), (821, 26792), (1576, 13957), (1642, 13396), (3284, 6698), (3349, 6568)]