31468689

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 56770560

約数和(自身を除く): 25301871

約数列:

[1, 3, 7, 9, 21, 27, 31, 41, 63, 93, 123, 131, 189, 217, 279, 287, 369, 393, 651, 837, 861, 917, 1107, 1179, 1271, 1953, 2583, 2751, 3537, 3813, 4061, 5371, 5859, 7749, 8253, 8897, 11439, 12183, 16113, 24759, 26691, 28427, 34317, 36549, 37597, 48339, 80073, 85281, 109647, 112791, 145017, 166501, 240219, 255843, 338373, 499503, 767529, 1015119, 1165507, 1498509, 3496521, 4495527, 10489563, 31468689]

約数ペア:

[(1, 31468689), (3, 10489563), (7, 4495527), (9, 3496521), (21, 1498509), (27, 1165507), (31, 1015119), (41, 767529), (63, 499503), (93, 338373), (123, 255843), (131, 240219), (189, 166501), (217, 145017), (279, 112791), (287, 109647), (369, 85281), (393, 80073), (651, 48339), (837, 37597), (861, 36549), (917, 34317), (1107, 28427), (1179, 26691), (1271, 24759), (1953, 16113), (2583, 12183), (2751, 11439), (3537, 8897), (3813, 8253), (4061, 7749), (5371, 5859)]