21918330

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11597}}^1$

素因数の和:11620

約数の個数: 64

約数和(自身を含む): 66804480

約数和(自身を除く): 44886150

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11597, 23194, 34791, 57985, 69582, 81179, 104373, 115970, 162358, 173955, 208746, 243537, 313119, 347910, 405895, 487074, 521865, 626238, 730611, 811790, 1043730, 1217685, 1461222, 1565595, 2191833, 2435370, 3131190, 3653055, 4383666, 7306110, 10959165, 21918330]

約数ペア:

[(1, 21918330), (2, 10959165), (3, 7306110), (5, 4383666), (6, 3653055), (7, 3131190), (9, 2435370), (10, 2191833), (14, 1565595), (15, 1461222), (18, 1217685), (21, 1043730), (27, 811790), (30, 730611), (35, 626238), (42, 521865), (45, 487074), (54, 405895), (63, 347910), (70, 313119), (90, 243537), (105, 208746), (126, 173955), (135, 162358), (189, 115970), (210, 104373), (270, 81179), (315, 69582), (378, 57985), (630, 34791), (945, 23194), (1890, 11597)]