21453536

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{3967}}^1$

素因数の和:4003

約数の個数: 36

約数和(自身を含む): 45747072

約数和(自身を除く): 24293536

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 3967, 5408, 7934, 15868, 31736, 51571, 63472, 103142, 126944, 206284, 412568, 670423, 825136, 1340846, 1650272, 2681692, 5363384, 10726768, 21453536]

約数ペア:

[(1, 21453536), (2, 10726768), (4, 5363384), (8, 2681692), (13, 1650272), (16, 1340846), (26, 825136), (32, 670423), (52, 412568), (104, 206284), (169, 126944), (208, 103142), (338, 63472), (416, 51571), (676, 31736), (1352, 15868), (2704, 7934), (3967, 5408)]