211020975

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{337}}^1$

素因数の和:398

約数の個数: 108

約数和(自身を含む): 434795088

約数和(自身を除く): 223774113

約数列:

[1, 3, 5, 9, 11, 15, 23, 25, 33, 45, 55, 69, 75, 99, 115, 121, 165, 207, 225, 253, 275, 337, 345, 363, 495, 575, 605, 759, 825, 1011, 1035, 1089, 1265, 1685, 1725, 1815, 2277, 2475, 2783, 3025, 3033, 3707, 3795, 5055, 5175, 5445, 6325, 7751, 8349, 8425, 9075, 11121, 11385, 13915, 15165, 18535, 18975, 23253, 25047, 25275, 27225, 33363, 38755, 40777, 41745, 55605, 56925, 69575, 69759, 75825, 85261, 92675, 116265, 122331, 125235, 166815, 193775, 203885, 208725, 255783, 278025, 348795, 366993, 426305, 581325, 611655, 626175, 767349, 834075, 937871, 1019425, 1278915, 1743975, 1834965, 2131525, 2813613, 3058275, 3836745, 4689355, 6394575, 8440839, 9174825, 14068065, 19183725, 23446775, 42204195, 70340325, 211020975]

約数ペア:

[(1, 211020975), (3, 70340325), (5, 42204195), (9, 23446775), (11, 19183725), (15, 14068065), (23, 9174825), (25, 8440839), (33, 6394575), (45, 4689355), (55, 3836745), (69, 3058275), (75, 2813613), (99, 2131525), (115, 1834965), (121, 1743975), (165, 1278915), (207, 1019425), (225, 937871), (253, 834075), (275, 767349), (337, 626175), (345, 611655), (363, 581325), (495, 426305), (575, 366993), (605, 348795), (759, 278025), (825, 255783), (1011, 208725), (1035, 203885), (1089, 193775), (1265, 166815), (1685, 125235), (1725, 122331), (1815, 116265), (2277, 92675), (2475, 85261), (2783, 75825), (3025, 69759), (3033, 69575), (3707, 56925), (3795, 55605), (5055, 41745), (5175, 40777), (5445, 38755), (6325, 33363), (7751, 27225), (8349, 25275), (8425, 25047), (9075, 23253), (11121, 18975), (11385, 18535), (13915, 15165)]