21308904

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^1\times {\mathrm{9547}}^1$

素因数の和:9590

約数の個数: 48

約数和(自身を含む): 59579520

約数和(自身を除く): 38270616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 62, 72, 93, 124, 186, 248, 279, 372, 558, 744, 1116, 2232, 9547, 19094, 28641, 38188, 57282, 76376, 85923, 114564, 171846, 229128, 295957, 343692, 591914, 687384, 887871, 1183828, 1775742, 2367656, 2663613, 3551484, 5327226, 7102968, 10654452, 21308904]

約数ペア:

[(1, 21308904), (2, 10654452), (3, 7102968), (4, 5327226), (6, 3551484), (8, 2663613), (9, 2367656), (12, 1775742), (18, 1183828), (24, 887871), (31, 687384), (36, 591914), (62, 343692), (72, 295957), (93, 229128), (124, 171846), (186, 114564), (248, 85923), (279, 76376), (372, 57282), (558, 38188), (744, 28641), (1116, 19094), (2232, 9547)]