20424316

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2221}}^1$

素因数の和:2266

約数の個数: 36

約数和(自身を含む): 41373640

約数和(自身を除く): 20949324

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2221, 2299, 4442, 4598, 8884, 9196, 24431, 42199, 48862, 84398, 97724, 168796, 268741, 464189, 537482, 928378, 1074964, 1856756, 5106079, 10212158, 20424316]

約数ペア:

[(1, 20424316), (2, 10212158), (4, 5106079), (11, 1856756), (19, 1074964), (22, 928378), (38, 537482), (44, 464189), (76, 268741), (121, 168796), (209, 97724), (242, 84398), (418, 48862), (484, 42199), (836, 24431), (2221, 9196), (2299, 8884), (4442, 4598)]