21630832

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:353

約数の個数: 40

約数和(自身を含む): 43102400

約数和(自身を除く): 21471568

約数列:

[1, 2, 4, 8, 16, 79, 109, 157, 158, 218, 314, 316, 436, 628, 632, 872, 1256, 1264, 1744, 2512, 8611, 12403, 17113, 17222, 24806, 34226, 34444, 49612, 68452, 68888, 99224, 136904, 137776, 198448, 273808, 1351927, 2703854, 5407708, 10815416, 21630832]

約数ペア:

[(1, 21630832), (2, 10815416), (4, 5407708), (8, 2703854), (16, 1351927), (79, 273808), (109, 198448), (157, 137776), (158, 136904), (218, 99224), (314, 68888), (316, 68452), (436, 49612), (628, 34444), (632, 34226), (872, 24806), (1256, 17222), (1264, 17113), (1744, 12403), (2512, 8611)]