19189868

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 36664320

約数和(自身を除く): 17474452

約数列:

[1, 2, 4, 31, 43, 59, 61, 62, 86, 118, 122, 124, 172, 236, 244, 1333, 1829, 1891, 2537, 2623, 2666, 3599, 3658, 3782, 5074, 5246, 5332, 7198, 7316, 7564, 10148, 10492, 14396, 78647, 81313, 111569, 154757, 157294, 162626, 223138, 309514, 314588, 325252, 446276, 619028, 4797467, 9594934, 19189868]

約数ペア:

[(1, 19189868), (2, 9594934), (4, 4797467), (31, 619028), (43, 446276), (59, 325252), (61, 314588), (62, 309514), (86, 223138), (118, 162626), (122, 157294), (124, 154757), (172, 111569), (236, 81313), (244, 78647), (1333, 14396), (1829, 10492), (1891, 10148), (2537, 7564), (2623, 7316), (2666, 7198), (3599, 5332), (3658, 5246), (3782, 5074)]