19217790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{653}}^1$

素因数の和:778

約数の個数: 64

約数和(自身を含む): 51796800

約数和(自身を除く): 32579010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 109, 135, 218, 270, 327, 545, 653, 654, 981, 1090, 1306, 1635, 1959, 1962, 2943, 3265, 3270, 3918, 4905, 5877, 5886, 6530, 9795, 9810, 11754, 14715, 17631, 19590, 29385, 29430, 35262, 58770, 71177, 88155, 142354, 176310, 213531, 355885, 427062, 640593, 711770, 1067655, 1281186, 1921779, 2135310, 3202965, 3843558, 6405930, 9608895, 19217790]

約数ペア:

[(1, 19217790), (2, 9608895), (3, 6405930), (5, 3843558), (6, 3202965), (9, 2135310), (10, 1921779), (15, 1281186), (18, 1067655), (27, 711770), (30, 640593), (45, 427062), (54, 355885), (90, 213531), (109, 176310), (135, 142354), (218, 88155), (270, 71177), (327, 58770), (545, 35262), (653, 29430), (654, 29385), (981, 19590), (1090, 17631), (1306, 14715), (1635, 11754), (1959, 9810), (1962, 9795), (2943, 6530), (3265, 5886), (3270, 5877), (3918, 4905)]