20820254

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{823}}^1$

素因数の和:984

約数の個数: 32

約数和(自身を含む): 38760960

約数和(自身を除く): 17940706

約数列:

[1, 2, 7, 13, 14, 26, 91, 139, 182, 278, 823, 973, 1646, 1807, 1946, 3614, 5761, 10699, 11522, 12649, 21398, 25298, 74893, 114397, 149786, 228794, 800779, 1487161, 1601558, 2974322, 10410127, 20820254]

約数ペア:

[(1, 20820254), (2, 10410127), (7, 2974322), (13, 1601558), (14, 1487161), (26, 800779), (91, 228794), (139, 149786), (182, 114397), (278, 74893), (823, 25298), (973, 21398), (1646, 12649), (1807, 11522), (1946, 10699), (3614, 5761)]