21720696

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{383}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 36340104

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 139, 204, 278, 383, 408, 417, 556, 766, 834, 1112, 1149, 1532, 1668, 2298, 2363, 3064, 3336, 4596, 4726, 6511, 7089, 9192, 9452, 13022, 14178, 18904, 19533, 26044, 28356, 39066, 52088, 53237, 56712, 78132, 106474, 156264, 159711, 212948, 319422, 425896, 638844, 905029, 1277688, 1810058, 2715087, 3620116, 5430174, 7240232, 10860348, 21720696]

約数ペア:

[(1, 21720696), (2, 10860348), (3, 7240232), (4, 5430174), (6, 3620116), (8, 2715087), (12, 1810058), (17, 1277688), (24, 905029), (34, 638844), (51, 425896), (68, 319422), (102, 212948), (136, 159711), (139, 156264), (204, 106474), (278, 78132), (383, 56712), (408, 53237), (417, 52088), (556, 39066), (766, 28356), (834, 26044), (1112, 19533), (1149, 18904), (1532, 14178), (1668, 13022), (2298, 9452), (2363, 9192), (3064, 7089), (3336, 6511), (4596, 4726)]