15216705

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 31442112

約数和(自身を除く): 16225407

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 67, 103, 105, 147, 201, 245, 309, 315, 335, 441, 469, 515, 603, 721, 735, 927, 1005, 1407, 1545, 2163, 2205, 2345, 3015, 3283, 3605, 4221, 4635, 5047, 6489, 6901, 7035, 9849, 10815, 15141, 16415, 20703, 21105, 25235, 29547, 32445, 34505, 45423, 48307, 49245, 62109, 75705, 103515, 144921, 147735, 227115, 241535, 310545, 338149, 434763, 724605, 1014447, 1690745, 2173815, 3043341, 5072235, 15216705]

約数ペア:

[(1, 15216705), (3, 5072235), (5, 3043341), (7, 2173815), (9, 1690745), (15, 1014447), (21, 724605), (35, 434763), (45, 338149), (49, 310545), (63, 241535), (67, 227115), (103, 147735), (105, 144921), (147, 103515), (201, 75705), (245, 62109), (309, 49245), (315, 48307), (335, 45423), (441, 34505), (469, 32445), (515, 29547), (603, 25235), (721, 21105), (735, 20703), (927, 16415), (1005, 15141), (1407, 10815), (1545, 9849), (2163, 7035), (2205, 6901), (2345, 6489), (3015, 5047), (3283, 4635), (3605, 4221)]