21001935

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1249}}^1$

素因数の和:1335

約数の個数: 32

約数和(自身を含む): 36000000

約数和(自身を除く): 14998065

約数列:

[1, 3, 5, 15, 19, 57, 59, 95, 177, 285, 295, 885, 1121, 1249, 3363, 3747, 5605, 6245, 16815, 18735, 23731, 71193, 73691, 118655, 221073, 355965, 368455, 1105365, 1400129, 4200387, 7000645, 21001935]

約数ペア:

[(1, 21001935), (3, 7000645), (5, 4200387), (15, 1400129), (19, 1105365), (57, 368455), (59, 355965), (95, 221073), (177, 118655), (285, 73691), (295, 71193), (885, 23731), (1121, 18735), (1249, 16815), (3363, 6245), (3747, 5605)]