12220857

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 20779200

約数和(自身を除く): 8558343

約数列:

[1, 3, 9, 11, 19, 33, 57, 73, 89, 99, 171, 209, 219, 267, 627, 657, 801, 803, 979, 1387, 1691, 1881, 2409, 2937, 4161, 5073, 6497, 7227, 8811, 12483, 15219, 15257, 18601, 19491, 45771, 55803, 58473, 71467, 123443, 137313, 167409, 214401, 370329, 643203, 1110987, 1357873, 4073619, 12220857]

約数ペア:

[(1, 12220857), (3, 4073619), (9, 1357873), (11, 1110987), (19, 643203), (33, 370329), (57, 214401), (73, 167409), (89, 137313), (99, 123443), (171, 71467), (209, 58473), (219, 55803), (267, 45771), (627, 19491), (657, 18601), (801, 15257), (803, 15219), (979, 12483), (1387, 8811), (1691, 7227), (1881, 6497), (2409, 5073), (2937, 4161)]