19239818

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 17048182

約数列:

[1, 2, 13, 17, 19, 26, 29, 34, 38, 58, 79, 158, 221, 247, 323, 377, 442, 493, 494, 551, 646, 754, 986, 1027, 1102, 1343, 1501, 2054, 2291, 2686, 3002, 4199, 4582, 6409, 7163, 8398, 9367, 12818, 14326, 17459, 18734, 19513, 25517, 29783, 34918, 38947, 39026, 43529, 51034, 59566, 77894, 87058, 121771, 243542, 331721, 506311, 565877, 663442, 739993, 1012622, 1131754, 1479986, 9619909, 19239818]

約数ペア:

[(1, 19239818), (2, 9619909), (13, 1479986), (17, 1131754), (19, 1012622), (26, 739993), (29, 663442), (34, 565877), (38, 506311), (58, 331721), (79, 243542), (158, 121771), (221, 87058), (247, 77894), (323, 59566), (377, 51034), (442, 43529), (493, 39026), (494, 38947), (551, 34918), (646, 29783), (754, 25517), (986, 19513), (1027, 18734), (1102, 17459), (1343, 14326), (1501, 12818), (2054, 9367), (2291, 8398), (2686, 7163), (3002, 6409), (4199, 4582)]