25251723

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 46110720

約数和(自身を除く): 20858997

約数列:

[1, 3, 7, 9, 21, 23, 27, 37, 63, 69, 111, 157, 161, 189, 207, 259, 333, 471, 483, 621, 777, 851, 999, 1099, 1413, 1449, 2331, 2553, 3297, 3611, 4239, 4347, 5809, 5957, 6993, 7659, 9891, 10833, 17427, 17871, 22977, 25277, 29673, 32499, 40663, 52281, 53613, 75831, 97497, 121989, 133607, 156843, 160839, 227493, 365967, 400821, 682479, 935249, 1097901, 1202463, 2805747, 3607389, 8417241, 25251723]

約数ペア:

[(1, 25251723), (3, 8417241), (7, 3607389), (9, 2805747), (21, 1202463), (23, 1097901), (27, 935249), (37, 682479), (63, 400821), (69, 365967), (111, 227493), (157, 160839), (161, 156843), (189, 133607), (207, 121989), (259, 97497), (333, 75831), (471, 53613), (483, 52281), (621, 40663), (777, 32499), (851, 29673), (999, 25277), (1099, 22977), (1413, 17871), (1449, 17427), (2331, 10833), (2553, 9891), (3297, 7659), (3611, 6993), (4239, 5957), (4347, 5809)]