20199385479

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{227}}^1\times {\mathrm{25073}}^1$

素因数の和:25336

約数の個数: 48

約数和(自身を含む): 33478002432

約数和(自身を除く): 13278616953

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 227, 273, 507, 681, 1183, 1589, 2951, 3549, 4767, 8853, 20657, 25073, 38363, 61971, 75219, 115089, 175511, 268541, 325949, 526533, 805623, 977847, 2281643, 4237337, 5691571, 6844929, 12712011, 17074713, 29661359, 39840997, 73990423, 88984077, 119522991, 221971269, 517932961, 961875499, 1553798883, 2885626497, 6733128493, 20199385479]

約数ペア:

[(1, 20199385479), (3, 6733128493), (7, 2885626497), (13, 1553798883), (21, 961875499), (39, 517932961), (91, 221971269), (169, 119522991), (227, 88984077), (273, 73990423), (507, 39840997), (681, 29661359), (1183, 17074713), (1589, 12712011), (2951, 6844929), (3549, 5691571), (4767, 4237337), (8853, 2281643), (20657, 977847), (25073, 805623), (38363, 526533), (61971, 325949), (75219, 268541), (115089, 175511)]