21451896

素因数分解:

$2^3\times 3^2\times {\mathrm{401}}^1\times {\mathrm{743}}^1$

素因数の和:1156

約数の個数: 48

約数和(自身を含む): 58322160

約数和(自身を除く): 36870264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 401, 743, 802, 1203, 1486, 1604, 2229, 2406, 2972, 3208, 3609, 4458, 4812, 5944, 6687, 7218, 8916, 9624, 13374, 14436, 17832, 26748, 28872, 53496, 297943, 595886, 893829, 1191772, 1787658, 2383544, 2681487, 3575316, 5362974, 7150632, 10725948, 21451896]

約数ペア:

[(1, 21451896), (2, 10725948), (3, 7150632), (4, 5362974), (6, 3575316), (8, 2681487), (9, 2383544), (12, 1787658), (18, 1191772), (24, 893829), (36, 595886), (72, 297943), (401, 53496), (743, 28872), (802, 26748), (1203, 17832), (1486, 14436), (1604, 13374), (2229, 9624), (2406, 8916), (2972, 7218), (3208, 6687), (3609, 5944), (4458, 4812)]