21940004

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{227}}^1\times {\mathrm{331}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 39210528

約数和(自身を除く): 17270524

約数列:

[1, 2, 4, 73, 146, 227, 292, 331, 454, 662, 908, 1324, 16571, 24163, 33142, 48326, 66284, 75137, 96652, 150274, 300548, 5485001, 10970002, 21940004]

約数ペア:

[(1, 21940004), (2, 10970002), (4, 5485001), (73, 300548), (146, 150274), (227, 96652), (292, 75137), (331, 66284), (454, 48326), (662, 33142), (908, 24163), (1324, 16571)]