71325261

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 122069376

約数和(自身を除く): 50744115

約数列:

[1, 3, 7, 9, 21, 43, 63, 113, 129, 233, 301, 339, 387, 699, 791, 903, 1017, 1631, 2097, 2373, 2709, 4859, 4893, 7119, 10019, 14577, 14679, 26329, 30057, 34013, 43731, 70133, 78987, 90171, 102039, 184303, 210399, 236961, 306117, 552909, 631197, 1132147, 1658727, 3396441, 7925029, 10189323, 23775087, 71325261]

約数ペア:

[(1, 71325261), (3, 23775087), (7, 10189323), (9, 7925029), (21, 3396441), (43, 1658727), (63, 1132147), (113, 631197), (129, 552909), (233, 306117), (301, 236961), (339, 210399), (387, 184303), (699, 102039), (791, 90171), (903, 78987), (1017, 70133), (1631, 43731), (2097, 34013), (2373, 30057), (2709, 26329), (4859, 14679), (4893, 14577), (7119, 10019)]