213893745

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{571}}^1$

素因数の和:722

約数の個数: 64

約数和(自身を含む): 394377984

約数和(自身を除く): 180484239

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 113, 195, 221, 255, 339, 565, 571, 663, 1105, 1469, 1695, 1713, 1921, 2855, 3315, 4407, 5763, 7345, 7423, 8565, 9605, 9707, 22035, 22269, 24973, 28815, 29121, 37115, 48535, 64523, 74919, 111345, 124865, 126191, 145605, 193569, 322615, 374595, 378573, 630955, 838799, 967845, 1096891, 1892865, 2516397, 3290673, 4193995, 5484455, 12581985, 14259583, 16453365, 42778749, 71297915, 213893745]

約数ペア:

[(1, 213893745), (3, 71297915), (5, 42778749), (13, 16453365), (15, 14259583), (17, 12581985), (39, 5484455), (51, 4193995), (65, 3290673), (85, 2516397), (113, 1892865), (195, 1096891), (221, 967845), (255, 838799), (339, 630955), (565, 378573), (571, 374595), (663, 322615), (1105, 193569), (1469, 145605), (1695, 126191), (1713, 124865), (1921, 111345), (2855, 74919), (3315, 64523), (4407, 48535), (5763, 37115), (7345, 29121), (7423, 28815), (8565, 24973), (9605, 22269), (9707, 22035)]