21201453

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8629}}^1$

素因数の和:8658

約数の個数: 32

約数和(自身を含む): 38662400

約数和(自身を除く): 17460947

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8629, 25887, 60403, 77661, 112177, 181209, 232983, 336531, 543627, 785239, 1009593, 1630881, 2355717, 3028779, 7067151, 21201453]

約数ペア:

[(1, 21201453), (3, 7067151), (7, 3028779), (9, 2355717), (13, 1630881), (21, 1009593), (27, 785239), (39, 543627), (63, 336531), (91, 232983), (117, 181209), (189, 112177), (273, 77661), (351, 60403), (819, 25887), (2457, 8629)]