21974355

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 44352000

約数和(自身を除く): 22377645

約数列:

[1, 3, 5, 9, 13, 15, 19, 27, 39, 45, 57, 65, 95, 117, 135, 171, 195, 247, 285, 351, 513, 585, 659, 741, 855, 1235, 1755, 1977, 2223, 2565, 3295, 3705, 5931, 6669, 8567, 9885, 11115, 12521, 17793, 25701, 29655, 33345, 37563, 42835, 62605, 77103, 88965, 112689, 128505, 162773, 187815, 231309, 338067, 385515, 488319, 563445, 813865, 1156545, 1464957, 1690335, 2441595, 4394871, 7324785, 21974355]

約数ペア:

[(1, 21974355), (3, 7324785), (5, 4394871), (9, 2441595), (13, 1690335), (15, 1464957), (19, 1156545), (27, 813865), (39, 563445), (45, 488319), (57, 385515), (65, 338067), (95, 231309), (117, 187815), (135, 162773), (171, 128505), (195, 112689), (247, 88965), (285, 77103), (351, 62605), (513, 42835), (585, 37563), (659, 33345), (741, 29655), (855, 25701), (1235, 17793), (1755, 12521), (1977, 11115), (2223, 9885), (2565, 8567), (3295, 6669), (3705, 5931)]