20783928

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:469

約数の個数: 96

約数和(自身を含む): 60616080

約数和(自身を除く): 39832152

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 44, 51, 66, 68, 88, 102, 121, 132, 136, 187, 204, 242, 264, 363, 374, 408, 421, 484, 561, 726, 748, 842, 968, 1122, 1263, 1452, 1496, 1684, 2057, 2244, 2526, 2904, 3368, 4114, 4488, 4631, 5052, 6171, 7157, 8228, 9262, 10104, 12342, 13893, 14314, 16456, 18524, 21471, 24684, 27786, 28628, 37048, 42942, 49368, 50941, 55572, 57256, 78727, 85884, 101882, 111144, 152823, 157454, 171768, 203764, 236181, 305646, 314908, 407528, 472362, 611292, 629816, 865997, 944724, 1222584, 1731994, 1889448, 2597991, 3463988, 5195982, 6927976, 10391964, 20783928]

約数ペア:

[(1, 20783928), (2, 10391964), (3, 6927976), (4, 5195982), (6, 3463988), (8, 2597991), (11, 1889448), (12, 1731994), (17, 1222584), (22, 944724), (24, 865997), (33, 629816), (34, 611292), (44, 472362), (51, 407528), (66, 314908), (68, 305646), (88, 236181), (102, 203764), (121, 171768), (132, 157454), (136, 152823), (187, 111144), (204, 101882), (242, 85884), (264, 78727), (363, 57256), (374, 55572), (408, 50941), (421, 49368), (484, 42942), (561, 37048), (726, 28628), (748, 27786), (842, 24684), (968, 21471), (1122, 18524), (1263, 16456), (1452, 14314), (1496, 13893), (1684, 12342), (2057, 10104), (2244, 9262), (2526, 8228), (2904, 7157), (3368, 6171), (4114, 5052), (4488, 4631)]