21940338

素因数分解:

$2^1\times 3^1\times 7^4\times {\mathrm{1523}}^1$

素因数の和:1556

約数の個数: 40

約数和(自身を含む): 51224688

約数和(自身を除く): 29284350

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 343, 686, 1029, 1523, 2058, 2401, 3046, 4569, 4802, 7203, 9138, 10661, 14406, 21322, 31983, 63966, 74627, 149254, 223881, 447762, 522389, 1044778, 1567167, 3134334, 3656723, 7313446, 10970169, 21940338]

約数ペア:

[(1, 21940338), (2, 10970169), (3, 7313446), (6, 3656723), (7, 3134334), (14, 1567167), (21, 1044778), (42, 522389), (49, 447762), (98, 223881), (147, 149254), (294, 74627), (343, 63966), (686, 31983), (1029, 21322), (1523, 14406), (2058, 10661), (2401, 9138), (3046, 7203), (4569, 4802)]