20217508506

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{659539}}^1$

素因数の和:659691

約数の個数: 48

約数和(自身を含む): 47534366880

約数和(自身を除く): 27316858374

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 131, 234, 262, 393, 786, 1179, 1703, 2358, 3406, 5109, 10218, 15327, 30654, 659539, 1319078, 1978617, 3957234, 5935851, 8574007, 11871702, 17148014, 25722021, 51444042, 77166063, 86399609, 154332126, 172799218, 259198827, 518397654, 777596481, 1123194917, 1555192962, 2246389834, 3369584751, 6739169502, 10108754253, 20217508506]

約数ペア:

[(1, 20217508506), (2, 10108754253), (3, 6739169502), (6, 3369584751), (9, 2246389834), (13, 1555192962), (18, 1123194917), (26, 777596481), (39, 518397654), (78, 259198827), (117, 172799218), (131, 154332126), (234, 86399609), (262, 77166063), (393, 51444042), (786, 25722021), (1179, 17148014), (1703, 11871702), (2358, 8574007), (3406, 5935851), (5109, 3957234), (10218, 1978617), (15327, 1319078), (30654, 659539)]