28034721

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 22042719

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 53, 99, 117, 137, 143, 159, 297, 351, 411, 429, 477, 583, 689, 1233, 1287, 1431, 1507, 1749, 1781, 2067, 3699, 3861, 4521, 5247, 5343, 6201, 7261, 7579, 13563, 15741, 16029, 18603, 19591, 21783, 22737, 40689, 48087, 58773, 65349, 68211, 79871, 94393, 176319, 196047, 204633, 239613, 283179, 528957, 718839, 849537, 1038323, 2156517, 2548611, 3114969, 9344907, 28034721]

約数ペア:

[(1, 28034721), (3, 9344907), (9, 3114969), (11, 2548611), (13, 2156517), (27, 1038323), (33, 849537), (39, 718839), (53, 528957), (99, 283179), (117, 239613), (137, 204633), (143, 196047), (159, 176319), (297, 94393), (351, 79871), (411, 68211), (429, 65349), (477, 58773), (583, 48087), (689, 40689), (1233, 22737), (1287, 21783), (1431, 19591), (1507, 18603), (1749, 16029), (1781, 15741), (2067, 13563), (3699, 7579), (3861, 7261), (4521, 6201), (5247, 5343)]