18865548

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{1493}}^1$

素因数の和:1525

約数の個数: 72

約数和(自身を含む): 53293968

約数和(自身を除く): 34428420

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 1493, 2106, 2986, 3159, 4212, 4479, 5972, 6318, 8958, 12636, 13437, 17916, 19409, 26874, 38818, 40311, 53748, 58227, 77636, 80622, 116454, 120933, 161244, 174681, 232908, 241866, 349362, 362799, 483732, 524043, 698724, 725598, 1048086, 1451196, 1572129, 2096172, 3144258, 4716387, 6288516, 9432774, 18865548]

約数ペア:

[(1, 18865548), (2, 9432774), (3, 6288516), (4, 4716387), (6, 3144258), (9, 2096172), (12, 1572129), (13, 1451196), (18, 1048086), (26, 725598), (27, 698724), (36, 524043), (39, 483732), (52, 362799), (54, 349362), (78, 241866), (81, 232908), (108, 174681), (117, 161244), (156, 120933), (162, 116454), (234, 80622), (243, 77636), (324, 58227), (351, 53748), (468, 40311), (486, 38818), (702, 26874), (972, 19409), (1053, 17916), (1404, 13437), (1493, 12636), (2106, 8958), (2986, 6318), (3159, 5972), (4212, 4479)]