21692790

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4919}}^1$

素因数の和:4946

約数の個数: 72

約数和(自身を含む): 65622960

約数和(自身を除く): 43930170

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, 4919, 9838, 14757, 24595, 29514, 34433, 44271, 49190, 68866, 73785, 88542, 103299, 147570, 172165, 206598, 221355, 241031, 309897, 344330, 442710, 482062, 516495, 619794, 723093, 1032990, 1205155, 1446186, 1549485, 2169279, 2410310, 3098970, 3615465, 4338558, 7230930, 10846395, 21692790]

約数ペア:

[(1, 21692790), (2, 10846395), (3, 7230930), (5, 4338558), (6, 3615465), (7, 3098970), (9, 2410310), (10, 2169279), (14, 1549485), (15, 1446186), (18, 1205155), (21, 1032990), (30, 723093), (35, 619794), (42, 516495), (45, 482062), (49, 442710), (63, 344330), (70, 309897), (90, 241031), (98, 221355), (105, 206598), (126, 172165), (147, 147570), (210, 103299), (245, 88542), (294, 73785), (315, 68866), (441, 49190), (490, 44271), (630, 34433), (735, 29514), (882, 24595), (1470, 14757), (2205, 9838), (4410, 4919)]