21688236

素因数分解:

$2^2\times 3^5\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:493

約数の個数: 72

約数和(自身を含む): 58063824

約数和(自身を除く): 36375588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 53, 54, 81, 106, 108, 159, 162, 212, 243, 318, 324, 421, 477, 486, 636, 842, 954, 972, 1263, 1431, 1684, 1908, 2526, 2862, 3789, 4293, 5052, 5724, 7578, 8586, 11367, 12879, 15156, 17172, 22313, 22734, 25758, 34101, 44626, 45468, 51516, 66939, 68202, 89252, 102303, 133878, 136404, 200817, 204606, 267756, 401634, 409212, 602451, 803268, 1204902, 1807353, 2409804, 3614706, 5422059, 7229412, 10844118, 21688236]

約数ペア:

[(1, 21688236), (2, 10844118), (3, 7229412), (4, 5422059), (6, 3614706), (9, 2409804), (12, 1807353), (18, 1204902), (27, 803268), (36, 602451), (53, 409212), (54, 401634), (81, 267756), (106, 204606), (108, 200817), (159, 136404), (162, 133878), (212, 102303), (243, 89252), (318, 68202), (324, 66939), (421, 51516), (477, 45468), (486, 44626), (636, 34101), (842, 25758), (954, 22734), (972, 22313), (1263, 17172), (1431, 15156), (1684, 12879), (1908, 11367), (2526, 8586), (2862, 7578), (3789, 5724), (4293, 5052)]