20739524

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 42865200

約数和(自身を除く): 22125676

約数列:

[1, 2, 4, 13, 17, 26, 29, 34, 52, 58, 68, 116, 221, 377, 442, 493, 754, 809, 884, 986, 1508, 1618, 1972, 3236, 6409, 10517, 12818, 13753, 21034, 23461, 25636, 27506, 42068, 46922, 55012, 93844, 178789, 304993, 357578, 398837, 609986, 715156, 797674, 1219972, 1595348, 5184881, 10369762, 20739524]

約数ペア:

[(1, 20739524), (2, 10369762), (4, 5184881), (13, 1595348), (17, 1219972), (26, 797674), (29, 715156), (34, 609986), (52, 398837), (58, 357578), (68, 304993), (116, 178789), (221, 93844), (377, 55012), (442, 46922), (493, 42068), (754, 27506), (809, 25636), (884, 23461), (986, 21034), (1508, 13753), (1618, 12818), (1972, 10517), (3236, 6409)]