21881884

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{487}}^1$

素因数の和:777

約数の個数: 24

約数和(自身を含む): 39352320

約数和(自身を除く): 17470436

約数列:

[1, 2, 4, 47, 94, 188, 239, 478, 487, 956, 974, 1948, 11233, 22466, 22889, 44932, 45778, 91556, 116393, 232786, 465572, 5470471, 10940942, 21881884]

約数ペア:

[(1, 21881884), (2, 10940942), (4, 5470471), (47, 465572), (94, 232786), (188, 116393), (239, 91556), (478, 45778), (487, 44932), (956, 22889), (974, 22466), (1948, 11233)]