21162806

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 39644640

約数和(自身を除く): 18481834

約数列:

[1, 2, 7, 14, 23, 41, 46, 49, 82, 98, 161, 229, 287, 322, 458, 574, 943, 1127, 1603, 1886, 2009, 2254, 3206, 4018, 5267, 6601, 9389, 10534, 11221, 13202, 18778, 22442, 36869, 46207, 65723, 73738, 92414, 131446, 215947, 258083, 431894, 460061, 516166, 920122, 1511629, 3023258, 10581403, 21162806]

約数ペア:

[(1, 21162806), (2, 10581403), (7, 3023258), (14, 1511629), (23, 920122), (41, 516166), (46, 460061), (49, 431894), (82, 258083), (98, 215947), (161, 131446), (229, 92414), (287, 73738), (322, 65723), (458, 46207), (574, 36869), (943, 22442), (1127, 18778), (1603, 13202), (1886, 11221), (2009, 10534), (2254, 9389), (3206, 6601), (4018, 5267)]