213759

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:61

約数の個数: 40

約数和(自身を含む): 406560

約数和(自身を除く): 192801

約数列:

[1, 3, 7, 9, 13, 21, 27, 29, 39, 63, 81, 87, 91, 117, 189, 203, 261, 273, 351, 377, 567, 609, 783, 819, 1053, 1131, 1827, 2349, 2457, 2639, 3393, 5481, 7371, 7917, 10179, 16443, 23751, 30537, 71253, 213759]

約数ペア:

[(1, 213759), (3, 71253), (7, 30537), (9, 23751), (13, 16443), (21, 10179), (27, 7917), (29, 7371), (39, 5481), (63, 3393), (81, 2639), (87, 2457), (91, 2349), (117, 1827), (189, 1131), (203, 1053), (261, 819), (273, 783), (351, 609), (377, 567)]