1999461645

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{643949}}^1$

素因数の和:643986

約数の個数: 32

約数和(自身を含む): 3709152000

約数和(自身を除く): 1709690355

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 643949, 1931847, 3219745, 5795541, 9659235, 14810827, 17386623, 28977705, 44432481, 74054135, 86933115, 133297443, 222162405, 399892329, 666487215, 1999461645]

約数ペア:

[(1, 1999461645), (3, 666487215), (5, 399892329), (9, 222162405), (15, 133297443), (23, 86933115), (27, 74054135), (45, 44432481), (69, 28977705), (115, 17386623), (135, 14810827), (207, 9659235), (345, 5795541), (621, 3219745), (1035, 1931847), (3105, 643949)]