21036730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 45577728

約数和(自身を除く): 24540998

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 47, 55, 65, 94, 110, 130, 143, 235, 286, 313, 470, 517, 611, 626, 715, 1034, 1222, 1430, 1565, 2585, 3055, 3130, 3443, 4069, 5170, 6110, 6721, 6886, 8138, 13442, 14711, 17215, 20345, 29422, 33605, 34430, 40690, 44759, 67210, 73555, 89518, 147110, 161821, 191243, 223795, 323642, 382486, 447590, 809105, 956215, 1618210, 1912430, 2103673, 4207346, 10518365, 21036730]

約数ペア:

[(1, 21036730), (2, 10518365), (5, 4207346), (10, 2103673), (11, 1912430), (13, 1618210), (22, 956215), (26, 809105), (47, 447590), (55, 382486), (65, 323642), (94, 223795), (110, 191243), (130, 161821), (143, 147110), (235, 89518), (286, 73555), (313, 67210), (470, 44759), (517, 40690), (611, 34430), (626, 33605), (715, 29422), (1034, 20345), (1222, 17215), (1430, 14711), (1565, 13442), (2585, 8138), (3055, 6886), (3130, 6721), (3443, 6110), (4069, 5170)]