21907696

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{337}}^1$

素因数の和:601

約数の個数: 40

約数和(自身を含む): 45264960

約数和(自身を除く): 23357264

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 239, 272, 337, 478, 674, 956, 1348, 1912, 2696, 3824, 4063, 5392, 5729, 8126, 11458, 16252, 22916, 32504, 45832, 65008, 80543, 91664, 161086, 322172, 644344, 1288688, 1369231, 2738462, 5476924, 10953848, 21907696]

約数ペア:

[(1, 21907696), (2, 10953848), (4, 5476924), (8, 2738462), (16, 1369231), (17, 1288688), (34, 644344), (68, 322172), (136, 161086), (239, 91664), (272, 80543), (337, 65008), (478, 45832), (674, 32504), (956, 22916), (1348, 16252), (1912, 11458), (2696, 8126), (3824, 5729), (4063, 5392)]