21915312484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1217}}^1\times {\mathrm{11171}}^1$

素因数の和:12436

約数の個数: 48

約数和(自身を含む): 42673107456

約数和(自身を除く): 20757794972

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1217, 1612, 2434, 4868, 11171, 15821, 22342, 31642, 37727, 44684, 63284, 75454, 145223, 150908, 290446, 346301, 490451, 580892, 692602, 980902, 1385204, 1961804, 4501913, 9003826, 13595107, 18007652, 27190214, 54380428, 176736391, 353472782, 421448317, 706945564, 842896634, 1685793268, 5478828121, 10957656242, 21915312484]

約数ペア:

[(1, 21915312484), (2, 10957656242), (4, 5478828121), (13, 1685793268), (26, 842896634), (31, 706945564), (52, 421448317), (62, 353472782), (124, 176736391), (403, 54380428), (806, 27190214), (1217, 18007652), (1612, 13595107), (2434, 9003826), (4868, 4501913), (11171, 1961804), (15821, 1385204), (22342, 980902), (31642, 692602), (37727, 580892), (44684, 490451), (63284, 346301), (75454, 290446), (145223, 150908)]