21319064

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10789}}^1$

素因数の和:10827

約数の個数: 32

約数和(自身を含む): 45318000

約数和(自身を除く): 23998936

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10789, 21578, 43156, 86312, 140257, 204991, 280514, 409982, 561028, 819964, 1122056, 1639928, 2664883, 5329766, 10659532, 21319064]

約数ペア:

[(1, 21319064), (2, 10659532), (4, 5329766), (8, 2664883), (13, 1639928), (19, 1122056), (26, 819964), (38, 561028), (52, 409982), (76, 280514), (104, 204991), (152, 140257), (247, 86312), (494, 43156), (988, 21578), (1976, 10789)]