19578412

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 21064148

約数列:

[1, 2, 4, 7, 14, 28, 53, 79, 106, 158, 167, 212, 316, 334, 371, 553, 668, 742, 1106, 1169, 1484, 2212, 2338, 4187, 4676, 8374, 8851, 13193, 16748, 17702, 26386, 29309, 35404, 52772, 58618, 61957, 92351, 117236, 123914, 184702, 247828, 369404, 699229, 1398458, 2796916, 4894603, 9789206, 19578412]

約数ペア:

[(1, 19578412), (2, 9789206), (4, 4894603), (7, 2796916), (14, 1398458), (28, 699229), (53, 369404), (79, 247828), (106, 184702), (158, 123914), (167, 117236), (212, 92351), (316, 61957), (334, 58618), (371, 52772), (553, 35404), (668, 29309), (742, 26386), (1106, 17702), (1169, 16748), (1484, 13193), (2212, 8851), (2338, 8374), (4187, 4676)]