21990850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{757}}^1$

素因数の和:859

約数の個数: 48

約数和(自身を含む): 47371968

約数和(自身を除く): 25381118

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 83, 166, 175, 350, 415, 581, 757, 830, 1162, 1514, 2075, 2905, 3785, 4150, 5299, 5810, 7570, 10598, 14525, 18925, 26495, 29050, 37850, 52990, 62831, 125662, 132475, 264950, 314155, 439817, 628310, 879634, 1570775, 2199085, 3141550, 4398170, 10995425, 21990850]

約数ペア:

[(1, 21990850), (2, 10995425), (5, 4398170), (7, 3141550), (10, 2199085), (14, 1570775), (25, 879634), (35, 628310), (50, 439817), (70, 314155), (83, 264950), (166, 132475), (175, 125662), (350, 62831), (415, 52990), (581, 37850), (757, 29050), (830, 26495), (1162, 18925), (1514, 14525), (2075, 10598), (2905, 7570), (3785, 5810), (4150, 5299)]