21552460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1319}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 48787200

約数和(自身を除く): 27234740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1319, 1634, 2638, 3268, 4085, 5276, 6595, 8170, 13190, 16340, 25061, 26380, 50122, 56717, 100244, 113434, 125305, 226868, 250610, 283585, 501220, 567170, 1077623, 1134340, 2155246, 4310492, 5388115, 10776230, 21552460]

約数ペア:

[(1, 21552460), (2, 10776230), (4, 5388115), (5, 4310492), (10, 2155246), (19, 1134340), (20, 1077623), (38, 567170), (43, 501220), (76, 283585), (86, 250610), (95, 226868), (172, 125305), (190, 113434), (215, 100244), (380, 56717), (430, 50122), (817, 26380), (860, 25061), (1319, 16340), (1634, 13190), (2638, 8170), (3268, 6595), (4085, 5276)]