21053710

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3821}}^1$

素因数の和:3876

約数の個数: 32

約数和(自身を含む): 41277600

約数和(自身を除く): 20223890

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 551, 1102, 2755, 3821, 5510, 7642, 19105, 38210, 72599, 110809, 145198, 221618, 362995, 554045, 725990, 1108090, 2105371, 4210742, 10526855, 21053710]

約数ペア:

[(1, 21053710), (2, 10526855), (5, 4210742), (10, 2105371), (19, 1108090), (29, 725990), (38, 554045), (58, 362995), (95, 221618), (145, 145198), (190, 110809), (290, 72599), (551, 38210), (1102, 19105), (2755, 7642), (3821, 5510)]