19138438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 33073920

約数和(自身を除く): 13935482

約数列:

[1, 2, 11, 22, 23, 46, 109, 218, 253, 347, 506, 694, 1199, 2398, 2507, 3817, 5014, 7634, 7981, 15962, 27577, 37823, 55154, 75646, 87791, 175582, 416053, 832106, 869929, 1739858, 9569219, 19138438]

約数ペア:

[(1, 19138438), (2, 9569219), (11, 1739858), (22, 869929), (23, 832106), (46, 416053), (109, 175582), (218, 87791), (253, 75646), (347, 55154), (506, 37823), (694, 27577), (1199, 15962), (2398, 7981), (2507, 7634), (3817, 5014)]