21766305

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 19290975

約数列:

[1, 3, 5, 11, 15, 19, 33, 53, 55, 57, 95, 131, 159, 165, 209, 265, 285, 393, 583, 627, 655, 795, 1007, 1045, 1441, 1749, 1965, 2489, 2915, 3021, 3135, 4323, 5035, 6943, 7205, 7467, 8745, 11077, 12445, 15105, 20829, 21615, 27379, 33231, 34715, 37335, 55385, 76373, 82137, 104145, 131917, 136895, 166155, 229119, 381865, 395751, 410685, 659585, 1145595, 1451087, 1978755, 4353261, 7255435, 21766305]

約数ペア:

[(1, 21766305), (3, 7255435), (5, 4353261), (11, 1978755), (15, 1451087), (19, 1145595), (33, 659585), (53, 410685), (55, 395751), (57, 381865), (95, 229119), (131, 166155), (159, 136895), (165, 131917), (209, 104145), (265, 82137), (285, 76373), (393, 55385), (583, 37335), (627, 34715), (655, 33231), (795, 27379), (1007, 21615), (1045, 20829), (1441, 15105), (1749, 12445), (1965, 11077), (2489, 8745), (2915, 7467), (3021, 7205), (3135, 6943), (4323, 5035)]