21207804978

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{498749}}^1$

素因数の和:499146

約数の個数: 32

約数和(自身を含む): 44767800000

約数和(自身を除く): 23559995022

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 373, 746, 1119, 2238, 7087, 14174, 21261, 42522, 498749, 997498, 1496247, 2992494, 9476231, 18952462, 28428693, 56857386, 186033377, 372066754, 558100131, 1116200262, 3534634163, 7069268326, 10603902489, 21207804978]

約数ペア:

[(1, 21207804978), (2, 10603902489), (3, 7069268326), (6, 3534634163), (19, 1116200262), (38, 558100131), (57, 372066754), (114, 186033377), (373, 56857386), (746, 28428693), (1119, 18952462), (2238, 9476231), (7087, 2992494), (14174, 1496247), (21261, 997498), (42522, 498749)]