19488404

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:384

約数の個数: 36

約数和(自身を含む): 37384704

約数和(自身を除く): 17896300

約数列:

[1, 2, 4, 13, 26, 52, 127, 169, 227, 254, 338, 454, 508, 676, 908, 1651, 2951, 3302, 5902, 6604, 11804, 21463, 28829, 38363, 42926, 57658, 76726, 85852, 115316, 153452, 374777, 749554, 1499108, 4872101, 9744202, 19488404]

約数ペア:

[(1, 19488404), (2, 9744202), (4, 4872101), (13, 1499108), (26, 749554), (52, 374777), (127, 153452), (169, 115316), (227, 85852), (254, 76726), (338, 57658), (454, 42926), (508, 38363), (676, 28829), (908, 21463), (1651, 11804), (2951, 6604), (3302, 5902)]