21386772

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1019}}^1$

素因数の和:1093

約数の個数: 72

約数和(自身を含む): 60147360

約数和(自身を除く): 38760588

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 53, 66, 99, 106, 132, 159, 198, 212, 318, 396, 477, 583, 636, 954, 1019, 1166, 1749, 1908, 2038, 2332, 3057, 3498, 4076, 5247, 6114, 6996, 9171, 10494, 11209, 12228, 18342, 20988, 22418, 33627, 36684, 44836, 54007, 67254, 100881, 108014, 134508, 162021, 201762, 216028, 324042, 403524, 486063, 594077, 648084, 972126, 1188154, 1782231, 1944252, 2376308, 3564462, 5346693, 7128924, 10693386, 21386772]

約数ペア:

[(1, 21386772), (2, 10693386), (3, 7128924), (4, 5346693), (6, 3564462), (9, 2376308), (11, 1944252), (12, 1782231), (18, 1188154), (22, 972126), (33, 648084), (36, 594077), (44, 486063), (53, 403524), (66, 324042), (99, 216028), (106, 201762), (132, 162021), (159, 134508), (198, 108014), (212, 100881), (318, 67254), (396, 54007), (477, 44836), (583, 36684), (636, 33627), (954, 22418), (1019, 20988), (1166, 18342), (1749, 12228), (1908, 11209), (2038, 10494), (2332, 9171), (3057, 6996), (3498, 6114), (4076, 5247)]