21556470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1783}}^1$

素因数の和:1837

約数の個数: 64

約数和(自身を含む): 57544704

約数和(自身を除く): 35988234

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 1783, 2015, 2418, 3566, 4030, 5349, 6045, 8915, 10698, 12090, 17830, 23179, 26745, 46358, 53490, 55273, 69537, 110546, 115895, 139074, 165819, 231790, 276365, 331638, 347685, 552730, 695370, 718549, 829095, 1437098, 1658190, 2155647, 3592745, 4311294, 7185490, 10778235, 21556470]

約数ペア:

[(1, 21556470), (2, 10778235), (3, 7185490), (5, 4311294), (6, 3592745), (10, 2155647), (13, 1658190), (15, 1437098), (26, 829095), (30, 718549), (31, 695370), (39, 552730), (62, 347685), (65, 331638), (78, 276365), (93, 231790), (130, 165819), (155, 139074), (186, 115895), (195, 110546), (310, 69537), (390, 55273), (403, 53490), (465, 46358), (806, 26745), (930, 23179), (1209, 17830), (1783, 12090), (2015, 10698), (2418, 8915), (3566, 6045), (4030, 5349)]