21393544

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1451}}^1$

素因数の和:1573

約数の個数: 32

約数和(自身を含む): 42688800

約数和(自身を除く): 21295256

約数列:

[1, 2, 4, 8, 19, 38, 76, 97, 152, 194, 388, 776, 1451, 1843, 2902, 3686, 5804, 7372, 11608, 14744, 27569, 55138, 110276, 140747, 220552, 281494, 562988, 1125976, 2674193, 5348386, 10696772, 21393544]

約数ペア:

[(1, 21393544), (2, 10696772), (4, 5348386), (8, 2674193), (19, 1125976), (38, 562988), (76, 281494), (97, 220552), (152, 140747), (194, 110276), (388, 55138), (776, 27569), (1451, 14744), (1843, 11608), (2902, 7372), (3686, 5804)]