21296535

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 38227968

約数和(自身を除く): 16931433

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 169, 195, 271, 403, 465, 507, 813, 845, 1209, 1355, 2015, 2535, 3523, 4065, 5239, 6045, 8401, 10569, 15717, 17615, 25203, 26195, 42005, 45799, 52845, 78585, 109213, 126015, 137397, 228995, 327639, 546065, 686985, 1419769, 1638195, 4259307, 7098845, 21296535]

約数ペア:

[(1, 21296535), (3, 7098845), (5, 4259307), (13, 1638195), (15, 1419769), (31, 686985), (39, 546065), (65, 327639), (93, 228995), (155, 137397), (169, 126015), (195, 109213), (271, 78585), (403, 52845), (465, 45799), (507, 42005), (813, 26195), (845, 25203), (1209, 17615), (1355, 15717), (2015, 10569), (2535, 8401), (3523, 6045), (4065, 5239)]