2639406

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 6842880

約数和(自身を除く): 4203474

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 29, 33, 42, 58, 66, 77, 87, 154, 174, 197, 203, 231, 319, 394, 406, 462, 591, 609, 638, 957, 1182, 1218, 1379, 1914, 2167, 2233, 2758, 4137, 4334, 4466, 5713, 6501, 6699, 8274, 11426, 13002, 13398, 15169, 17139, 30338, 34278, 39991, 45507, 62843, 79982, 91014, 119973, 125686, 188529, 239946, 377058, 439901, 879802, 1319703, 2639406]

約数ペア:

[(1, 2639406), (2, 1319703), (3, 879802), (6, 439901), (7, 377058), (11, 239946), (14, 188529), (21, 125686), (22, 119973), (29, 91014), (33, 79982), (42, 62843), (58, 45507), (66, 39991), (77, 34278), (87, 30338), (154, 17139), (174, 15169), (197, 13398), (203, 13002), (231, 11426), (319, 8274), (394, 6699), (406, 6501), (462, 5713), (591, 4466), (609, 4334), (638, 4137), (957, 2758), (1182, 2233), (1218, 2167), (1379, 1914)]