21775460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{155539}}^1$

素因数の和:155555

約数の個数: 24

約数和(自身を含む): 52261440

約数和(自身を除く): 30485980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 155539, 311078, 622156, 777695, 1088773, 1555390, 2177546, 3110780, 4355092, 5443865, 10887730, 21775460]

約数ペア:

[(1, 21775460), (2, 10887730), (4, 5443865), (5, 4355092), (7, 3110780), (10, 2177546), (14, 1555390), (20, 1088773), (28, 777695), (35, 622156), (70, 311078), (140, 155539)]