20774884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 42166656

約数和(自身を除く): 21391772

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 71, 142, 221, 284, 331, 442, 662, 884, 923, 1207, 1324, 1846, 2414, 3692, 4303, 4828, 5627, 8606, 11254, 15691, 17212, 22508, 23501, 31382, 47002, 62764, 73151, 94004, 146302, 292604, 305513, 399517, 611026, 799034, 1222052, 1598068, 5193721, 10387442, 20774884]

約数ペア:

[(1, 20774884), (2, 10387442), (4, 5193721), (13, 1598068), (17, 1222052), (26, 799034), (34, 611026), (52, 399517), (68, 305513), (71, 292604), (142, 146302), (221, 94004), (284, 73151), (331, 62764), (442, 47002), (662, 31382), (884, 23501), (923, 22508), (1207, 17212), (1324, 15691), (1846, 11254), (2414, 8606), (3692, 5627), (4303, 4828)]