20847816

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^2\times {\mathrm{2393}}^1$

素因数の和:2427

約数の個数: 72

約数和(自身を含む): 62088390

約数和(自身を除く): 41240574

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 88, 99, 121, 132, 198, 242, 264, 363, 396, 484, 726, 792, 968, 1089, 1452, 2178, 2393, 2904, 4356, 4786, 7179, 8712, 9572, 14358, 19144, 21537, 26323, 28716, 43074, 52646, 57432, 78969, 86148, 105292, 157938, 172296, 210584, 236907, 289553, 315876, 473814, 579106, 631752, 868659, 947628, 1158212, 1737318, 1895256, 2316424, 2605977, 3474636, 5211954, 6949272, 10423908, 20847816]

約数ペア:

[(1, 20847816), (2, 10423908), (3, 6949272), (4, 5211954), (6, 3474636), (8, 2605977), (9, 2316424), (11, 1895256), (12, 1737318), (18, 1158212), (22, 947628), (24, 868659), (33, 631752), (36, 579106), (44, 473814), (66, 315876), (72, 289553), (88, 236907), (99, 210584), (121, 172296), (132, 157938), (198, 105292), (242, 86148), (264, 78969), (363, 57432), (396, 52646), (484, 43074), (726, 28716), (792, 26323), (968, 21537), (1089, 19144), (1452, 14358), (2178, 9572), (2393, 8712), (2904, 7179), (4356, 4786)]