21093325

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{367}}^1$

素因数の和:418

約数の個数: 36

約数和(自身を含む): 30345280

約数和(自身を除く): 9251955

約数列:

[1, 5, 11, 19, 25, 55, 95, 121, 209, 275, 367, 475, 605, 1045, 1835, 2299, 3025, 4037, 5225, 6973, 9175, 11495, 20185, 34865, 44407, 57475, 76703, 100925, 174325, 222035, 383515, 843733, 1110175, 1917575, 4218665, 21093325]

約数ペア:

[(1, 21093325), (5, 4218665), (11, 1917575), (19, 1110175), (25, 843733), (55, 383515), (95, 222035), (121, 174325), (209, 100925), (275, 76703), (367, 57475), (475, 44407), (605, 34865), (1045, 20185), (1835, 11495), (2299, 9175), (3025, 6973), (4037, 5225)]