21169740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7507}}^1$

素因数の和:7566

約数の個数: 48

約数和(自身を含む): 60544512

約数和(自身を除く): 39374772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7507, 15014, 22521, 30028, 37535, 45042, 75070, 90084, 112605, 150140, 225210, 352829, 450420, 705658, 1058487, 1411316, 1764145, 2116974, 3528290, 4233948, 5292435, 7056580, 10584870, 21169740]

約数ペア:

[(1, 21169740), (2, 10584870), (3, 7056580), (4, 5292435), (5, 4233948), (6, 3528290), (10, 2116974), (12, 1764145), (15, 1411316), (20, 1058487), (30, 705658), (47, 450420), (60, 352829), (94, 225210), (141, 150140), (188, 112605), (235, 90084), (282, 75070), (470, 45042), (564, 37535), (705, 30028), (940, 22521), (1410, 15014), (2820, 7507)]