21675340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1723}}^1$

素因数の和:1786

約数の個数: 48

約数和(自身を含む): 49527072

約数和(自身を除く): 27851732

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 1723, 2516, 3145, 3446, 6290, 6892, 8615, 12580, 17230, 29291, 34460, 58582, 63751, 117164, 127502, 146455, 255004, 292910, 318755, 585820, 637510, 1083767, 1275020, 2167534, 4335068, 5418835, 10837670, 21675340]

約数ペア:

[(1, 21675340), (2, 10837670), (4, 5418835), (5, 4335068), (10, 2167534), (17, 1275020), (20, 1083767), (34, 637510), (37, 585820), (68, 318755), (74, 292910), (85, 255004), (148, 146455), (170, 127502), (185, 117164), (340, 63751), (370, 58582), (629, 34460), (740, 29291), (1258, 17230), (1723, 12580), (2516, 8615), (3145, 6892), (3446, 6290)]