21338820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118549}}^1$

素因数の和:118564

約数の個数: 36

約数和(自身を含む): 64728300

約数和(自身を除く): 43389480

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118549, 237098, 355647, 474196, 592745, 711294, 1066941, 1185490, 1422588, 1778235, 2133882, 2370980, 3556470, 4267764, 5334705, 7112940, 10669410, 21338820]

約数ペア:

[(1, 21338820), (2, 10669410), (3, 7112940), (4, 5334705), (5, 4267764), (6, 3556470), (9, 2370980), (10, 2133882), (12, 1778235), (15, 1422588), (18, 1185490), (20, 1066941), (30, 711294), (36, 592745), (45, 474196), (60, 355647), (90, 237098), (180, 118549)]