20211752

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{239}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 42897600

約数和(自身を除く): 22685848

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 239, 248, 341, 478, 682, 956, 961, 1364, 1912, 1922, 2629, 2728, 3844, 5258, 7409, 7688, 10516, 10571, 14818, 21032, 21142, 29636, 42284, 59272, 81499, 84568, 162998, 229679, 325996, 459358, 651992, 918716, 1837432, 2526469, 5052938, 10105876, 20211752]

約数ペア:

[(1, 20211752), (2, 10105876), (4, 5052938), (8, 2526469), (11, 1837432), (22, 918716), (31, 651992), (44, 459358), (62, 325996), (88, 229679), (124, 162998), (239, 84568), (248, 81499), (341, 59272), (478, 42284), (682, 29636), (956, 21142), (961, 21032), (1364, 14818), (1912, 10571), (1922, 10516), (2629, 7688), (2728, 7409), (3844, 5258)]