31359951

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 57620160

約数和(自身を除く): 26260209

約数列:

[1, 3, 7, 9, 17, 21, 47, 49, 51, 63, 89, 119, 141, 147, 153, 267, 329, 357, 423, 441, 623, 799, 801, 833, 987, 1071, 1513, 1869, 2303, 2397, 2499, 2961, 4183, 4361, 4539, 5593, 5607, 6909, 7191, 7497, 10591, 12549, 13083, 13617, 16779, 20727, 29281, 31773, 37647, 39151, 39249, 50337, 71111, 74137, 87843, 95319, 117453, 204967, 213333, 222411, 263529, 352359, 497777, 614901, 639999, 667233, 1493331, 1844703, 3484439, 4479993, 10453317, 31359951]

約数ペア:

[(1, 31359951), (3, 10453317), (7, 4479993), (9, 3484439), (17, 1844703), (21, 1493331), (47, 667233), (49, 639999), (51, 614901), (63, 497777), (89, 352359), (119, 263529), (141, 222411), (147, 213333), (153, 204967), (267, 117453), (329, 95319), (357, 87843), (423, 74137), (441, 71111), (623, 50337), (799, 39249), (801, 39151), (833, 37647), (987, 31773), (1071, 29281), (1513, 20727), (1869, 16779), (2303, 13617), (2397, 13083), (2499, 12549), (2961, 10591), (4183, 7497), (4361, 7191), (4539, 6909), (5593, 5607)]