16987425

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 36664320

約数和(自身を除く): 19676895

約数列:

[1, 3, 5, 7, 13, 15, 19, 21, 25, 35, 39, 57, 65, 75, 91, 95, 105, 131, 133, 175, 195, 247, 273, 285, 325, 393, 399, 455, 475, 525, 655, 665, 741, 917, 975, 1235, 1365, 1425, 1703, 1729, 1965, 1995, 2275, 2489, 2751, 3275, 3325, 3705, 4585, 5109, 5187, 6175, 6825, 7467, 8515, 8645, 9825, 9975, 11921, 12445, 13755, 17423, 18525, 22925, 25545, 25935, 32357, 35763, 37335, 42575, 43225, 52269, 59605, 62225, 68775, 87115, 97071, 127725, 129675, 161785, 178815, 186675, 226499, 261345, 298025, 435575, 485355, 679497, 808925, 894075, 1132495, 1306725, 2426775, 3397485, 5662475, 16987425]

約数ペア:

[(1, 16987425), (3, 5662475), (5, 3397485), (7, 2426775), (13, 1306725), (15, 1132495), (19, 894075), (21, 808925), (25, 679497), (35, 485355), (39, 435575), (57, 298025), (65, 261345), (75, 226499), (91, 186675), (95, 178815), (105, 161785), (131, 129675), (133, 127725), (175, 97071), (195, 87115), (247, 68775), (273, 62225), (285, 59605), (325, 52269), (393, 43225), (399, 42575), (455, 37335), (475, 35763), (525, 32357), (655, 25935), (665, 25545), (741, 22925), (917, 18525), (975, 17423), (1235, 13755), (1365, 12445), (1425, 11921), (1703, 9975), (1729, 9825), (1965, 8645), (1995, 8515), (2275, 7467), (2489, 6825), (2751, 6175), (3275, 5187), (3325, 5109), (3705, 4585)]