21848740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 48988800

約数和(自身を除く): 27140060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 179, 340, 358, 359, 716, 718, 895, 1436, 1790, 1795, 3043, 3580, 3590, 6086, 6103, 7180, 12172, 12206, 15215, 24412, 30430, 30515, 60860, 61030, 64261, 122060, 128522, 257044, 321305, 642610, 1092437, 1285220, 2184874, 4369748, 5462185, 10924370, 21848740]

約数ペア:

[(1, 21848740), (2, 10924370), (4, 5462185), (5, 4369748), (10, 2184874), (17, 1285220), (20, 1092437), (34, 642610), (68, 321305), (85, 257044), (170, 128522), (179, 122060), (340, 64261), (358, 61030), (359, 60860), (716, 30515), (718, 30430), (895, 24412), (1436, 15215), (1790, 12206), (1795, 12172), (3043, 7180), (3580, 6103), (3590, 6086)]