20348600818

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{21341}}^1$

素因数の和:21420

約数の個数: 64

約数和(自身を含む): 39009761280

約数和(自身を除く): 18661160462

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 169, 182, 217, 338, 403, 434, 806, 1183, 2197, 2366, 2821, 4394, 5239, 5642, 10478, 15379, 21341, 30758, 36673, 42682, 68107, 73346, 136214, 149387, 277433, 298774, 476749, 554866, 661571, 953498, 1323142, 1942031, 3606629, 3884062, 4630997, 7213258, 8600423, 9261994, 17200846, 25246403, 46886177, 50492806, 60202961, 93772354, 111805499, 120405922, 223610998, 328203239, 656406478, 782638493, 1453471487, 1565276986, 2906942974, 10174300409, 20348600818]

約数ペア:

[(1, 20348600818), (2, 10174300409), (7, 2906942974), (13, 1565276986), (14, 1453471487), (26, 782638493), (31, 656406478), (62, 328203239), (91, 223610998), (169, 120405922), (182, 111805499), (217, 93772354), (338, 60202961), (403, 50492806), (434, 46886177), (806, 25246403), (1183, 17200846), (2197, 9261994), (2366, 8600423), (2821, 7213258), (4394, 4630997), (5239, 3884062), (5642, 3606629), (10478, 1942031), (15379, 1323142), (21341, 953498), (30758, 661571), (36673, 554866), (42682, 476749), (68107, 298774), (73346, 277433), (136214, 149387)]