647942706

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{521693}}^1$

素因数の和:521727

約数の個数: 32

約数和(自身を含む): 1502478720

約数和(自身を除く): 854536014

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 621, 1242, 521693, 1043386, 1565079, 3130158, 4695237, 9390474, 11998939, 14085711, 23997878, 28171422, 35996817, 71993634, 107990451, 215980902, 323971353, 647942706]

約数ペア:

[(1, 647942706), (2, 323971353), (3, 215980902), (6, 107990451), (9, 71993634), (18, 35996817), (23, 28171422), (27, 23997878), (46, 14085711), (54, 11998939), (69, 9390474), (138, 4695237), (207, 3130158), (414, 1565079), (621, 1043386), (1242, 521693)]