21129123561

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{80537}}^1$

素因数の和:80622

約数の個数: 48

約数和(自身を含む): 35828456832

約数和(自身を除く): 14699333271

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 961, 1209, 2821, 2883, 6727, 8463, 12493, 20181, 37479, 80537, 87451, 241611, 262353, 563759, 1046981, 1691277, 2496647, 3140943, 7328867, 7489941, 17476529, 21986601, 32456411, 52429587, 77396057, 97369233, 227194877, 232188171, 541772399, 681584631, 1006148741, 1625317197, 3018446223, 7043041187, 21129123561]

約数ペア:

[(1, 21129123561), (3, 7043041187), (7, 3018446223), (13, 1625317197), (21, 1006148741), (31, 681584631), (39, 541772399), (91, 232188171), (93, 227194877), (217, 97369233), (273, 77396057), (403, 52429587), (651, 32456411), (961, 21986601), (1209, 17476529), (2821, 7489941), (2883, 7328867), (6727, 3140943), (8463, 2496647), (12493, 1691277), (20181, 1046981), (37479, 563759), (80537, 262353), (87451, 241611)]