21998025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13967}}^1$

素因数の和:13990

約数の個数: 36

約数和(自身を含む): 45032832

約数和(自身を除く): 23034807

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 13967, 41901, 69835, 97769, 125703, 209505, 293307, 349175, 488845, 628515, 879921, 1047525, 1466535, 2444225, 3142575, 4399605, 7332675, 21998025]

約数ペア:

[(1, 21998025), (3, 7332675), (5, 4399605), (7, 3142575), (9, 2444225), (15, 1466535), (21, 1047525), (25, 879921), (35, 628515), (45, 488845), (63, 349175), (75, 293307), (105, 209505), (175, 125703), (225, 97769), (315, 69835), (525, 41901), (1575, 13967)]