20128291263

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{349}}^1\times {\mathrm{9013}}^1$

素因数の和:9453

約数の個数: 40

約数和(自身を含む): 30539432000

約数和(自身を除く): 10411140737

約数列:

[1, 3, 9, 27, 79, 81, 237, 349, 711, 1047, 2133, 3141, 6399, 9013, 9423, 27039, 27571, 28269, 81117, 82713, 243351, 248139, 712027, 730053, 744417, 2136081, 2233251, 3145537, 6408243, 9436611, 19224729, 28309833, 57674187, 84929499, 248497423, 254788497, 745492269, 2236476807, 6709430421, 20128291263]

約数ペア:

[(1, 20128291263), (3, 6709430421), (9, 2236476807), (27, 745492269), (79, 254788497), (81, 248497423), (237, 84929499), (349, 57674187), (711, 28309833), (1047, 19224729), (2133, 9436611), (3141, 6408243), (6399, 3145537), (9013, 2233251), (9423, 2136081), (27039, 744417), (27571, 730053), (28269, 712027), (81117, 248139), (82713, 243351)]