21000455475

素因数分解:

$3^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{1327043}}^1$

素因数の和:1327267

約数の個数: 24

約数和(自身を含む): 34885332672

約数和(自身を除く): 13884877197

約数列:

[1, 3, 5, 15, 25, 75, 211, 633, 1055, 3165, 5275, 15825, 1327043, 3981129, 6635215, 19905645, 33176075, 99528225, 280006073, 840018219, 1400030365, 4200091095, 7000151825, 21000455475]

約数ペア:

[(1, 21000455475), (3, 7000151825), (5, 4200091095), (15, 1400030365), (25, 840018219), (75, 280006073), (211, 99528225), (633, 33176075), (1055, 19905645), (3165, 6635215), (5275, 3981129), (15825, 1327043)]