18974355

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 31337280

約数和(自身を除く): 12362925

約数列:

[1, 3, 5, 15, 61, 89, 183, 233, 267, 305, 445, 699, 915, 1165, 1335, 3495, 5429, 14213, 16287, 20737, 27145, 42639, 62211, 71065, 81435, 103685, 213195, 311055, 1264957, 3794871, 6324785, 18974355]

約数ペア:

[(1, 18974355), (3, 6324785), (5, 3794871), (15, 1264957), (61, 311055), (89, 213195), (183, 103685), (233, 81435), (267, 71065), (305, 62211), (445, 42639), (699, 27145), (915, 20737), (1165, 16287), (1335, 14213), (3495, 5429)]