21772170

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4937}}^1$

素因数の和:4964

約数の個数: 72

約数和(自身を含む): 65863044

約数和(自身を除く): 44090874

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4937, 9874, 14811, 24685, 29622, 34559, 44433, 49370, 69118, 74055, 88866, 103677, 148110, 172795, 207354, 222165, 241913, 311031, 345590, 444330, 483826, 518385, 622062, 725739, 1036770, 1209565, 1451478, 1555155, 2177217, 2419130, 3110310, 3628695, 4354434, 7257390, 10886085, 21772170]

約数ペア:

[(1, 21772170), (2, 10886085), (3, 7257390), (5, 4354434), (6, 3628695), (7, 3110310), (9, 2419130), (10, 2177217), (14, 1555155), (15, 1451478), (18, 1209565), (21, 1036770), (30, 725739), (35, 622062), (42, 518385), (45, 483826), (49, 444330), (63, 345590), (70, 311031), (90, 241913), (98, 222165), (105, 207354), (126, 172795), (147, 148110), (210, 103677), (245, 88866), (294, 74055), (315, 69118), (441, 49370), (490, 44433), (630, 34559), (735, 29622), (882, 24685), (1470, 14811), (2205, 9874), (4410, 4937)]