19937808

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:373

約数の個数: 120

約数和(自身を含む): 62558496

約数和(自身を除く): 42620688

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 41, 44, 48, 66, 72, 82, 88, 99, 123, 132, 144, 164, 176, 198, 246, 264, 307, 328, 369, 396, 451, 492, 528, 614, 656, 738, 792, 902, 921, 984, 1228, 1353, 1476, 1584, 1804, 1842, 1968, 2456, 2706, 2763, 2952, 3377, 3608, 3684, 4059, 4912, 5412, 5526, 5904, 6754, 7216, 7368, 8118, 10131, 10824, 11052, 12587, 13508, 14736, 16236, 20262, 21648, 22104, 25174, 27016, 30393, 32472, 37761, 40524, 44208, 50348, 54032, 60786, 64944, 75522, 81048, 100696, 113283, 121572, 138457, 151044, 162096, 201392, 226566, 243144, 276914, 302088, 415371, 453132, 486288, 553828, 604176, 830742, 906264, 1107656, 1246113, 1661484, 1812528, 2215312, 2492226, 3322968, 4984452, 6645936, 9968904, 19937808]

約数ペア:

[(1, 19937808), (2, 9968904), (3, 6645936), (4, 4984452), (6, 3322968), (8, 2492226), (9, 2215312), (11, 1812528), (12, 1661484), (16, 1246113), (18, 1107656), (22, 906264), (24, 830742), (33, 604176), (36, 553828), (41, 486288), (44, 453132), (48, 415371), (66, 302088), (72, 276914), (82, 243144), (88, 226566), (99, 201392), (123, 162096), (132, 151044), (144, 138457), (164, 121572), (176, 113283), (198, 100696), (246, 81048), (264, 75522), (307, 64944), (328, 60786), (369, 54032), (396, 50348), (451, 44208), (492, 40524), (528, 37761), (614, 32472), (656, 30393), (738, 27016), (792, 25174), (902, 22104), (921, 21648), (984, 20262), (1228, 16236), (1353, 14736), (1476, 13508), (1584, 12587), (1804, 11052), (1842, 10824), (1968, 10131), (2456, 8118), (2706, 7368), (2763, 7216), (2952, 6754), (3377, 5904), (3608, 5526), (3684, 5412), (4059, 4912)]