18886088

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 39143700

約数和(自身を除く): 20257612

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 169, 229, 244, 338, 458, 488, 676, 793, 916, 1352, 1586, 1832, 2977, 3172, 5954, 6344, 10309, 11908, 13969, 20618, 23816, 27938, 38701, 41236, 55876, 77402, 82472, 111752, 154804, 181597, 309608, 363194, 726388, 1452776, 2360761, 4721522, 9443044, 18886088]

約数ペア:

[(1, 18886088), (2, 9443044), (4, 4721522), (8, 2360761), (13, 1452776), (26, 726388), (52, 363194), (61, 309608), (104, 181597), (122, 154804), (169, 111752), (229, 82472), (244, 77402), (338, 55876), (458, 41236), (488, 38701), (676, 27938), (793, 23816), (916, 20618), (1352, 13969), (1586, 11908), (1832, 10309), (2977, 6344), (3172, 5954)]