21487740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3347}}^1$

素因数の和:3466

約数の個数: 48

約数和(自身を含む): 60746112

約数和(自身を除く): 39258372

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 107, 214, 321, 428, 535, 642, 1070, 1284, 1605, 2140, 3210, 3347, 6420, 6694, 10041, 13388, 16735, 20082, 33470, 40164, 50205, 66940, 100410, 200820, 358129, 716258, 1074387, 1432516, 1790645, 2148774, 3581290, 4297548, 5371935, 7162580, 10743870, 21487740]

約数ペア:

[(1, 21487740), (2, 10743870), (3, 7162580), (4, 5371935), (5, 4297548), (6, 3581290), (10, 2148774), (12, 1790645), (15, 1432516), (20, 1074387), (30, 716258), (60, 358129), (107, 200820), (214, 100410), (321, 66940), (428, 50205), (535, 40164), (642, 33470), (1070, 20082), (1284, 16735), (1605, 13388), (2140, 10041), (3210, 6694), (3347, 6420)]