21931280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{39163}}^1$

素因数の和:39183

約数の個数: 40

約数和(自身を含む): 58276032

約数和(自身を除く): 36344752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 39163, 78326, 156652, 195815, 274141, 313304, 391630, 548282, 626608, 783260, 1096564, 1370705, 1566520, 2193128, 2741410, 3133040, 4386256, 5482820, 10965640, 21931280]

約数ペア:

[(1, 21931280), (2, 10965640), (4, 5482820), (5, 4386256), (7, 3133040), (8, 2741410), (10, 2193128), (14, 1566520), (16, 1370705), (20, 1096564), (28, 783260), (35, 626608), (40, 548282), (56, 391630), (70, 313304), (80, 274141), (112, 195815), (140, 156652), (280, 78326), (560, 39163)]