21828850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:511

約数の個数: 48

約数和(自身を含む): 43798536

約数和(自身を除く): 21969686

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 61, 85, 122, 170, 305, 421, 425, 610, 842, 850, 1037, 1525, 2074, 2105, 3050, 4210, 5185, 7157, 10370, 10525, 14314, 21050, 25681, 25925, 35785, 51362, 51850, 71570, 128405, 178925, 256810, 357850, 436577, 642025, 873154, 1284050, 2182885, 4365770, 10914425, 21828850]

約数ペア:

[(1, 21828850), (2, 10914425), (5, 4365770), (10, 2182885), (17, 1284050), (25, 873154), (34, 642025), (50, 436577), (61, 357850), (85, 256810), (122, 178925), (170, 128405), (305, 71570), (421, 51850), (425, 51362), (610, 35785), (842, 25925), (850, 25681), (1037, 21050), (1525, 14314), (2074, 10525), (2105, 10370), (3050, 7157), (4210, 5185)]