21810290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{601}}^1$

素因数の和:818

約数の個数: 32

約数和(自身を含む): 41610240

約数和(自身を除く): 19799950

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 191, 382, 601, 955, 1202, 1910, 3005, 3629, 6010, 7258, 11419, 18145, 22838, 36290, 57095, 114190, 114791, 229582, 573955, 1147910, 2181029, 4362058, 10905145, 21810290]

約数ペア:

[(1, 21810290), (2, 10905145), (5, 4362058), (10, 2181029), (19, 1147910), (38, 573955), (95, 229582), (190, 114791), (191, 114190), (382, 57095), (601, 36290), (955, 22838), (1202, 18145), (1910, 11419), (3005, 7258), (3629, 6010)]