21781548

素因数分解:

$2^2\times 3^5\times {\mathrm{22409}}^1$

素因数の和:22428

約数の個数: 36

約数和(自身を含む): 57100680

約数和(自身を除く): 35319132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972, 22409, 44818, 67227, 89636, 134454, 201681, 268908, 403362, 605043, 806724, 1210086, 1815129, 2420172, 3630258, 5445387, 7260516, 10890774, 21781548]

約数ペア:

[(1, 21781548), (2, 10890774), (3, 7260516), (4, 5445387), (6, 3630258), (9, 2420172), (12, 1815129), (18, 1210086), (27, 806724), (36, 605043), (54, 403362), (81, 268908), (108, 201681), (162, 134454), (243, 89636), (324, 67227), (486, 44818), (972, 22409)]