1221389715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{894791}}^1$

素因数の和:894819

約数の個数: 32

約数和(自身を含む): 2405200896

約数和(自身を除く): 1183811181

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 894791, 2684373, 4473955, 6263537, 11632283, 13421865, 18790611, 31317685, 34896849, 58161415, 81425981, 93953055, 174484245, 244277943, 407129905, 1221389715]

約数ペア:

[(1, 1221389715), (3, 407129905), (5, 244277943), (7, 174484245), (13, 93953055), (15, 81425981), (21, 58161415), (35, 34896849), (39, 31317685), (65, 18790611), (91, 13421865), (105, 11632283), (195, 6263537), (273, 4473955), (455, 2684373), (1365, 894791)]