20346417

素因数分解:

$3^3\times 7^3\times {\mathrm{13}}^3$

素因数の和:69

約数の個数: 64

約数和(自身を含む): 38080000

約数和(自身を除く): 17733583

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 147, 169, 189, 273, 343, 351, 441, 507, 637, 819, 1029, 1183, 1323, 1521, 1911, 2197, 2457, 3087, 3549, 4459, 4563, 5733, 6591, 8281, 9261, 10647, 13377, 15379, 17199, 19773, 24843, 31941, 40131, 46137, 57967, 59319, 74529, 107653, 120393, 138411, 173901, 223587, 322959, 415233, 521703, 753571, 968877, 1565109, 2260713, 2906631, 6782139, 20346417]

約数ペア:

[(1, 20346417), (3, 6782139), (7, 2906631), (9, 2260713), (13, 1565109), (21, 968877), (27, 753571), (39, 521703), (49, 415233), (63, 322959), (91, 223587), (117, 173901), (147, 138411), (169, 120393), (189, 107653), (273, 74529), (343, 59319), (351, 57967), (441, 46137), (507, 40131), (637, 31941), (819, 24843), (1029, 19773), (1183, 17199), (1323, 15379), (1521, 13377), (1911, 10647), (2197, 9261), (2457, 8281), (3087, 6591), (3549, 5733), (4459, 4563)]