221457405

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{4013}}^1$

素因数の和:4317

約数の個数: 32

約数和(自身を含む): 383031936

約数和(自身を除く): 161574531

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 283, 849, 1415, 3679, 4013, 4245, 11037, 12039, 18395, 20065, 52169, 55185, 60195, 156507, 260845, 782535, 1135679, 3407037, 5678395, 14763827, 17035185, 44291481, 73819135, 221457405]

約数ペア:

[(1, 221457405), (3, 73819135), (5, 44291481), (13, 17035185), (15, 14763827), (39, 5678395), (65, 3407037), (195, 1135679), (283, 782535), (849, 260845), (1415, 156507), (3679, 60195), (4013, 55185), (4245, 52169), (11037, 20065), (12039, 18395)]