20879244

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 55665792

約数和(自身を除く): 34786548

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 53, 62, 93, 106, 124, 159, 186, 212, 279, 318, 353, 372, 477, 558, 636, 706, 954, 1059, 1116, 1412, 1643, 1908, 2118, 3177, 3286, 4236, 4929, 6354, 6572, 9858, 10943, 12708, 14787, 18709, 19716, 21886, 29574, 32829, 37418, 43772, 56127, 59148, 65658, 74836, 98487, 112254, 131316, 168381, 196974, 224508, 336762, 393948, 579979, 673524, 1159958, 1739937, 2319916, 3479874, 5219811, 6959748, 10439622, 20879244]

約数ペア:

[(1, 20879244), (2, 10439622), (3, 6959748), (4, 5219811), (6, 3479874), (9, 2319916), (12, 1739937), (18, 1159958), (31, 673524), (36, 579979), (53, 393948), (62, 336762), (93, 224508), (106, 196974), (124, 168381), (159, 131316), (186, 112254), (212, 98487), (279, 74836), (318, 65658), (353, 59148), (372, 56127), (477, 43772), (558, 37418), (636, 32829), (706, 29574), (954, 21886), (1059, 19716), (1116, 18709), (1412, 14787), (1643, 12708), (1908, 10943), (2118, 9858), (3177, 6572), (3286, 6354), (4236, 4929)]