21231408

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:610

約数の個数: 80

約数和(自身を含む): 60710400

約数和(自身を除く): 39478992

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 79, 88, 132, 158, 176, 237, 264, 316, 474, 509, 528, 632, 869, 948, 1018, 1264, 1527, 1738, 1896, 2036, 2607, 3054, 3476, 3792, 4072, 5214, 5599, 6108, 6952, 8144, 10428, 11198, 12216, 13904, 16797, 20856, 22396, 24432, 33594, 40211, 41712, 44792, 67188, 80422, 89584, 120633, 134376, 160844, 241266, 268752, 321688, 442321, 482532, 643376, 884642, 965064, 1326963, 1769284, 1930128, 2653926, 3538568, 5307852, 7077136, 10615704, 21231408]

約数ペア:

[(1, 21231408), (2, 10615704), (3, 7077136), (4, 5307852), (6, 3538568), (8, 2653926), (11, 1930128), (12, 1769284), (16, 1326963), (22, 965064), (24, 884642), (33, 643376), (44, 482532), (48, 442321), (66, 321688), (79, 268752), (88, 241266), (132, 160844), (158, 134376), (176, 120633), (237, 89584), (264, 80422), (316, 67188), (474, 44792), (509, 41712), (528, 40211), (632, 33594), (869, 24432), (948, 22396), (1018, 20856), (1264, 16797), (1527, 13904), (1738, 12216), (1896, 11198), (2036, 10428), (2607, 8144), (3054, 6952), (3476, 6108), (3792, 5599), (4072, 5214)]