21780576

素因数分解:

$2^5\times 3^5\times {\mathrm{2801}}^1$

素因数の和:2826

約数の個数: 72

約数和(自身を含む): 64255464

約数和(自身を除く): 42474888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 216, 243, 288, 324, 432, 486, 648, 864, 972, 1296, 1944, 2592, 2801, 3888, 5602, 7776, 8403, 11204, 16806, 22408, 25209, 33612, 44816, 50418, 67224, 75627, 89632, 100836, 134448, 151254, 201672, 226881, 268896, 302508, 403344, 453762, 605016, 680643, 806688, 907524, 1210032, 1361286, 1815048, 2420064, 2722572, 3630096, 5445144, 7260192, 10890288, 21780576]

約数ペア:

[(1, 21780576), (2, 10890288), (3, 7260192), (4, 5445144), (6, 3630096), (8, 2722572), (9, 2420064), (12, 1815048), (16, 1361286), (18, 1210032), (24, 907524), (27, 806688), (32, 680643), (36, 605016), (48, 453762), (54, 403344), (72, 302508), (81, 268896), (96, 226881), (108, 201672), (144, 151254), (162, 134448), (216, 100836), (243, 89632), (288, 75627), (324, 67224), (432, 50418), (486, 44816), (648, 33612), (864, 25209), (972, 22408), (1296, 16806), (1944, 11204), (2592, 8403), (2801, 7776), (3888, 5602)]