21649284

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1021}}^1$

素因数の和:1081

約数の個数: 72

約数和(自身を含む): 59521280

約数和(自身を除く): 37871996

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 57, 62, 76, 93, 114, 124, 171, 186, 228, 279, 342, 372, 558, 589, 684, 1021, 1116, 1178, 1767, 2042, 2356, 3063, 3534, 4084, 5301, 6126, 7068, 9189, 10602, 12252, 18378, 19399, 21204, 31651, 36756, 38798, 58197, 63302, 77596, 94953, 116394, 126604, 174591, 189906, 232788, 284859, 349182, 379812, 569718, 601369, 698364, 1139436, 1202738, 1804107, 2405476, 3608214, 5412321, 7216428, 10824642, 21649284]

約数ペア:

[(1, 21649284), (2, 10824642), (3, 7216428), (4, 5412321), (6, 3608214), (9, 2405476), (12, 1804107), (18, 1202738), (19, 1139436), (31, 698364), (36, 601369), (38, 569718), (57, 379812), (62, 349182), (76, 284859), (93, 232788), (114, 189906), (124, 174591), (171, 126604), (186, 116394), (228, 94953), (279, 77596), (342, 63302), (372, 58197), (558, 38798), (589, 36756), (684, 31651), (1021, 21204), (1116, 19399), (1178, 18378), (1767, 12252), (2042, 10602), (2356, 9189), (3063, 7068), (3534, 6126), (4084, 5301)]