21054850

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{599}}^1$

素因数の和:667

約数の個数: 48

約数和(自身を含む): 42408000

約数和(自身を除く): 21353150

約数列:

[1, 2, 5, 10, 19, 25, 37, 38, 50, 74, 95, 185, 190, 370, 475, 599, 703, 925, 950, 1198, 1406, 1850, 2995, 3515, 5990, 7030, 11381, 14975, 17575, 22163, 22762, 29950, 35150, 44326, 56905, 110815, 113810, 221630, 284525, 421097, 554075, 569050, 842194, 1108150, 2105485, 4210970, 10527425, 21054850]

約数ペア:

[(1, 21054850), (2, 10527425), (5, 4210970), (10, 2105485), (19, 1108150), (25, 842194), (37, 569050), (38, 554075), (50, 421097), (74, 284525), (95, 221630), (185, 113810), (190, 110815), (370, 56905), (475, 44326), (599, 35150), (703, 29950), (925, 22762), (950, 22163), (1198, 17575), (1406, 14975), (1850, 11381), (2995, 7030), (3515, 5990)]