21815694728

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1\times {\mathrm{4481}}^1$

素因数の和:4878

約数の個数: 64

約数和(自身を含む): 43009989120

約数和(自身を除く): 21194294392

約数列:

[1, 2, 4, 8, 31, 62, 67, 124, 134, 248, 268, 293, 536, 586, 1172, 2077, 2344, 4154, 4481, 8308, 8962, 9083, 16616, 17924, 18166, 19631, 35848, 36332, 39262, 72664, 78524, 138911, 157048, 277822, 300227, 555644, 600454, 608561, 1111288, 1200908, 1217122, 1312933, 2401816, 2434244, 2625866, 4868488, 5251732, 9307037, 10503464, 18614074, 37228148, 40700923, 74456296, 81401846, 87966511, 162803692, 175933022, 325607384, 351866044, 703732088, 2726961841, 5453923682, 10907847364, 21815694728]

約数ペア:

[(1, 21815694728), (2, 10907847364), (4, 5453923682), (8, 2726961841), (31, 703732088), (62, 351866044), (67, 325607384), (124, 175933022), (134, 162803692), (248, 87966511), (268, 81401846), (293, 74456296), (536, 40700923), (586, 37228148), (1172, 18614074), (2077, 10503464), (2344, 9307037), (4154, 5251732), (4481, 4868488), (8308, 2625866), (8962, 2434244), (9083, 2401816), (16616, 1312933), (17924, 1217122), (18166, 1200908), (19631, 1111288), (35848, 608561), (36332, 600454), (39262, 555644), (72664, 300227), (78524, 277822), (138911, 157048)]