21175256

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{359}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 40759200

約数和(自身を除く): 19583944

約数列:

[1, 2, 4, 8, 73, 101, 146, 202, 292, 359, 404, 584, 718, 808, 1436, 2872, 7373, 14746, 26207, 29492, 36259, 52414, 58984, 72518, 104828, 145036, 209656, 290072, 2646907, 5293814, 10587628, 21175256]

約数ペア:

[(1, 21175256), (2, 10587628), (4, 5293814), (8, 2646907), (73, 290072), (101, 209656), (146, 145036), (202, 104828), (292, 72518), (359, 58984), (404, 52414), (584, 36259), (718, 29492), (808, 26207), (1436, 14746), (2872, 7373)]