19985834

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 34776000

約数和(自身を除く): 14790166

約数列:

[1, 2, 11, 19, 22, 38, 137, 209, 274, 349, 418, 698, 1507, 2603, 3014, 3839, 5206, 6631, 7678, 13262, 28633, 47813, 57266, 72941, 95626, 145882, 525943, 908447, 1051886, 1816894, 9992917, 19985834]

約数ペア:

[(1, 19985834), (2, 9992917), (11, 1816894), (19, 1051886), (22, 908447), (38, 525943), (137, 145882), (209, 95626), (274, 72941), (349, 57266), (418, 47813), (698, 28633), (1507, 13262), (2603, 7678), (3014, 6631), (3839, 5206)]