638851131

素因数分解:

$3^{10}\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:410

約数の個数: 44

約数和(自身を含む): 992017600

約数和(自身を除く): 353166469

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 349, 729, 837, 1047, 2187, 2511, 3141, 6561, 7533, 9423, 10819, 19683, 22599, 28269, 32457, 59049, 67797, 84807, 97371, 203391, 254421, 292113, 610173, 763263, 876339, 1830519, 2289789, 2629017, 6869367, 7887051, 20608101, 23661153, 70983459, 212950377, 638851131]

約数ペア:

[(1, 638851131), (3, 212950377), (9, 70983459), (27, 23661153), (31, 20608101), (81, 7887051), (93, 6869367), (243, 2629017), (279, 2289789), (349, 1830519), (729, 876339), (837, 763263), (1047, 610173), (2187, 292113), (2511, 254421), (3141, 203391), (6561, 97371), (7533, 84807), (9423, 67797), (10819, 59049), (19683, 32457), (22599, 28269)]