20857579061

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{521}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 25593200640

約数和(自身を除く): 4735621579

約数列:

[1, 11, 19, 31, 37, 167, 209, 341, 407, 521, 589, 703, 1147, 1837, 3173, 5177, 5731, 6179, 6479, 7733, 9899, 12617, 16151, 19277, 21793, 34903, 56947, 67969, 87007, 98363, 108889, 117401, 177661, 191549, 212047, 239723, 306869, 366263, 597587, 957077, 1081993, 1291411, 1653133, 2107039, 2697217, 3219259, 3375559, 3639431, 4028893, 6573457, 11354153, 18184463, 29669387, 35411849, 40033741, 51247123, 61165921, 99797029, 124895683, 563718353, 672825131, 1097767319, 1896143551, 20857579061]

約数ペア:

[(1, 20857579061), (11, 1896143551), (19, 1097767319), (31, 672825131), (37, 563718353), (167, 124895683), (209, 99797029), (341, 61165921), (407, 51247123), (521, 40033741), (589, 35411849), (703, 29669387), (1147, 18184463), (1837, 11354153), (3173, 6573457), (5177, 4028893), (5731, 3639431), (6179, 3375559), (6479, 3219259), (7733, 2697217), (9899, 2107039), (12617, 1653133), (16151, 1291411), (19277, 1081993), (21793, 957077), (34903, 597587), (56947, 366263), (67969, 306869), (87007, 239723), (98363, 212047), (108889, 191549), (117401, 177661)]