19967906

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 35696640

約数和(自身を除く): 15728734

約数列:

[1, 2, 7, 14, 31, 62, 139, 217, 278, 331, 434, 662, 973, 1946, 2317, 4309, 4634, 8618, 10261, 20522, 30163, 46009, 60326, 71827, 92018, 143654, 322063, 644126, 1426279, 2852558, 9983953, 19967906]

約数ペア:

[(1, 19967906), (2, 9983953), (7, 2852558), (14, 1426279), (31, 644126), (62, 322063), (139, 143654), (217, 92018), (278, 71827), (331, 60326), (434, 46009), (662, 30163), (973, 20522), (1946, 10261), (2317, 8618), (4309, 4634)]