21051506

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2729}}^1$

素因数の和:2786

約数の個数: 32

約数和(自身を含む): 39312000

約数和(自身を除く): 18260494

約数列:

[1, 2, 7, 14, 19, 29, 38, 58, 133, 203, 266, 406, 551, 1102, 2729, 3857, 5458, 7714, 19103, 38206, 51851, 79141, 103702, 158282, 362957, 553987, 725914, 1107974, 1503679, 3007358, 10525753, 21051506]

約数ペア:

[(1, 21051506), (2, 10525753), (7, 3007358), (14, 1503679), (19, 1107974), (29, 725914), (38, 553987), (58, 362957), (133, 158282), (203, 103702), (266, 79141), (406, 51851), (551, 38206), (1102, 19103), (2729, 7714), (3857, 5458)]