20321658

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1453}}^1$

素因数の和:1508

約数の個数: 64

約数和(自身を含む): 53041920

約数和(自身を除く): 32720262

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 54, 63, 74, 111, 126, 189, 222, 259, 333, 378, 518, 666, 777, 999, 1453, 1554, 1998, 2331, 2906, 4359, 4662, 6993, 8718, 10171, 13077, 13986, 20342, 26154, 30513, 39231, 53761, 61026, 78462, 91539, 107522, 161283, 183078, 274617, 322566, 376327, 483849, 549234, 752654, 967698, 1128981, 1451547, 2257962, 2903094, 3386943, 6773886, 10160829, 20321658]

約数ペア:

[(1, 20321658), (2, 10160829), (3, 6773886), (6, 3386943), (7, 2903094), (9, 2257962), (14, 1451547), (18, 1128981), (21, 967698), (27, 752654), (37, 549234), (42, 483849), (54, 376327), (63, 322566), (74, 274617), (111, 183078), (126, 161283), (189, 107522), (222, 91539), (259, 78462), (333, 61026), (378, 53761), (518, 39231), (666, 30513), (777, 26154), (999, 20342), (1453, 13986), (1554, 13077), (1998, 10171), (2331, 8718), (2906, 6993), (4359, 4662)]