17720276

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 37161600

約数和(自身を除く): 19441324

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 139, 157, 203, 278, 314, 406, 556, 628, 812, 973, 1099, 1946, 2198, 3892, 4031, 4396, 4553, 8062, 9106, 16124, 18212, 21823, 28217, 31871, 43646, 56434, 63742, 87292, 112868, 127484, 152761, 305522, 611044, 632867, 1265734, 2531468, 4430069, 8860138, 17720276]

約数ペア:

[(1, 17720276), (2, 8860138), (4, 4430069), (7, 2531468), (14, 1265734), (28, 632867), (29, 611044), (58, 305522), (116, 152761), (139, 127484), (157, 112868), (203, 87292), (278, 63742), (314, 56434), (406, 43646), (556, 31871), (628, 28217), (812, 21823), (973, 18212), (1099, 16124), (1946, 9106), (2198, 8062), (3892, 4553), (4031, 4396)]