71985753

素因数分解:

$3^4\times 7^3\times {\mathrm{2591}}^1$

素因数の和:2624

約数の個数: 40

約数和(自身を含む): 125452800

約数和(自身を除く): 53467047

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 1029, 1323, 2591, 3087, 3969, 7773, 9261, 18137, 23319, 27783, 54411, 69957, 126959, 163233, 209871, 380877, 489699, 888713, 1142631, 1469097, 2666139, 3427893, 7998417, 10283679, 23995251, 71985753]

約数ペア:

[(1, 71985753), (3, 23995251), (7, 10283679), (9, 7998417), (21, 3427893), (27, 2666139), (49, 1469097), (63, 1142631), (81, 888713), (147, 489699), (189, 380877), (343, 209871), (441, 163233), (567, 126959), (1029, 69957), (1323, 54411), (2591, 27783), (3087, 23319), (3969, 18137), (7773, 9261)]