21025020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18443}}^1$

素因数の和:18474

約数の個数: 48

約数和(自身を含む): 61971840

約数和(自身を除く): 40946820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18443, 36886, 55329, 73772, 92215, 110658, 184430, 221316, 276645, 350417, 368860, 553290, 700834, 1051251, 1106580, 1401668, 1752085, 2102502, 3504170, 4205004, 5256255, 7008340, 10512510, 21025020]

約数ペア:

[(1, 21025020), (2, 10512510), (3, 7008340), (4, 5256255), (5, 4205004), (6, 3504170), (10, 2102502), (12, 1752085), (15, 1401668), (19, 1106580), (20, 1051251), (30, 700834), (38, 553290), (57, 368860), (60, 350417), (76, 276645), (95, 221316), (114, 184430), (190, 110658), (228, 92215), (285, 73772), (380, 55329), (570, 36886), (1140, 18443)]