87940671

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 147571200

約数和(自身を除く): 59630529

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 169, 213, 273, 349, 497, 507, 923, 1047, 1183, 1491, 2443, 2769, 3549, 4537, 6461, 7329, 11999, 13611, 19383, 24779, 31759, 35997, 58981, 74337, 83993, 95277, 173453, 176943, 251979, 322127, 412867, 520359, 966381, 1238601, 2254889, 4187651, 6764667, 12562953, 29313557, 87940671]

約数ペア:

[(1, 87940671), (3, 29313557), (7, 12562953), (13, 6764667), (21, 4187651), (39, 2254889), (71, 1238601), (91, 966381), (169, 520359), (213, 412867), (273, 322127), (349, 251979), (497, 176943), (507, 173453), (923, 95277), (1047, 83993), (1183, 74337), (1491, 58981), (2443, 35997), (2769, 31759), (3549, 24779), (4537, 19383), (6461, 13611), (7329, 11999)]