21992958

素因数分解:

$2^1\times 3^5\times {\mathrm{13}}^1\times {\mathrm{59}}^2$

素因数の和:148

約数の個数: 72

約数和(自身を含む): 54134808

約数和(自身を除く): 32141850

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 59, 78, 81, 117, 118, 162, 177, 234, 243, 351, 354, 486, 531, 702, 767, 1053, 1062, 1534, 1593, 2106, 2301, 3159, 3186, 3481, 4602, 4779, 6318, 6903, 6962, 9558, 10443, 13806, 14337, 20709, 20886, 28674, 31329, 41418, 45253, 62127, 62658, 90506, 93987, 124254, 135759, 186381, 187974, 271518, 281961, 372762, 407277, 563922, 814554, 845883, 1221831, 1691766, 2443662, 3665493, 7330986, 10996479, 21992958]

約数ペア:

[(1, 21992958), (2, 10996479), (3, 7330986), (6, 3665493), (9, 2443662), (13, 1691766), (18, 1221831), (26, 845883), (27, 814554), (39, 563922), (54, 407277), (59, 372762), (78, 281961), (81, 271518), (117, 187974), (118, 186381), (162, 135759), (177, 124254), (234, 93987), (243, 90506), (351, 62658), (354, 62127), (486, 45253), (531, 41418), (702, 31329), (767, 28674), (1053, 20886), (1062, 20709), (1534, 14337), (1593, 13806), (2106, 10443), (2301, 9558), (3159, 6962), (3186, 6903), (3481, 6318), (4602, 4779)]