18893992

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1307}}^1$

素因数の和:1465

約数の個数: 32

約数和(自身を含む): 38455200

約数和(自身を除く): 19561208

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 278, 556, 1112, 1307, 1807, 2614, 3614, 5228, 7228, 10456, 14456, 16991, 33982, 67964, 135928, 181673, 363346, 726692, 1453384, 2361749, 4723498, 9446996, 18893992]

約数ペア:

[(1, 18893992), (2, 9446996), (4, 4723498), (8, 2361749), (13, 1453384), (26, 726692), (52, 363346), (104, 181673), (139, 135928), (278, 67964), (556, 33982), (1112, 16991), (1307, 14456), (1807, 10456), (2614, 7228), (3614, 5228)]