18913023895

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1\times {\mathrm{8573}}^1$

素因数の和:8983

約数の個数: 32

約数和(自身を含む): 24047806464

約数和(自身を除く): 5134782569

約数列:

[1, 5, 31, 43, 155, 215, 331, 1333, 1655, 6665, 8573, 10261, 14233, 42865, 51305, 71165, 265763, 368639, 441223, 1328815, 1843195, 2206115, 2837663, 11427809, 14188315, 57139045, 87967553, 122019509, 439837765, 610097545, 3782604779, 18913023895]

約数ペア:

[(1, 18913023895), (5, 3782604779), (31, 610097545), (43, 439837765), (155, 122019509), (215, 87967553), (331, 57139045), (1333, 14188315), (1655, 11427809), (6665, 2837663), (8573, 2206115), (10261, 1843195), (14233, 1328815), (42865, 441223), (51305, 368639), (71165, 265763)]