18691673

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 25546752

約数和(自身を除く): 6855079

約数列:

[1, 7, 11, 13, 71, 77, 91, 143, 263, 497, 781, 923, 1001, 1841, 2893, 3419, 5467, 6461, 10153, 18673, 20251, 23933, 37609, 71071, 130711, 205403, 242749, 263263, 1437821, 1699243, 2670239, 18691673]

約数ペア:

[(1, 18691673), (7, 2670239), (11, 1699243), (13, 1437821), (71, 263263), (77, 242749), (91, 205403), (143, 130711), (263, 71071), (497, 37609), (781, 23933), (923, 20251), (1001, 18673), (1841, 10153), (2893, 6461), (3419, 5467)]