18657208

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{587}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 36514800

約数和(自身を除く): 17857592

約数列:

[1, 2, 4, 8, 29, 58, 116, 137, 232, 274, 548, 587, 1096, 1174, 2348, 3973, 4696, 7946, 15892, 17023, 31784, 34046, 68092, 80419, 136184, 160838, 321676, 643352, 2332151, 4664302, 9328604, 18657208]

約数ペア:

[(1, 18657208), (2, 9328604), (4, 4664302), (8, 2332151), (29, 643352), (58, 321676), (116, 160838), (137, 136184), (232, 80419), (274, 68092), (548, 34046), (587, 31784), (1096, 17023), (1174, 15892), (2348, 7946), (3973, 4696)]