21274164

素因数分解:

$2^2\times 3^5\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:571

約数の個数: 72

約数和(自身を含む): 57177120

約数和(自身を除く): 35902956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 81, 86, 108, 129, 162, 172, 243, 258, 324, 387, 486, 509, 516, 774, 972, 1018, 1161, 1527, 1548, 2036, 2322, 3054, 3483, 4581, 4644, 6108, 6966, 9162, 10449, 13743, 13932, 18324, 20898, 21887, 27486, 41229, 41796, 43774, 54972, 65661, 82458, 87548, 123687, 131322, 164916, 196983, 247374, 262644, 393966, 494748, 590949, 787932, 1181898, 1772847, 2363796, 3545694, 5318541, 7091388, 10637082, 21274164]

約数ペア:

[(1, 21274164), (2, 10637082), (3, 7091388), (4, 5318541), (6, 3545694), (9, 2363796), (12, 1772847), (18, 1181898), (27, 787932), (36, 590949), (43, 494748), (54, 393966), (81, 262644), (86, 247374), (108, 196983), (129, 164916), (162, 131322), (172, 123687), (243, 87548), (258, 82458), (324, 65661), (387, 54972), (486, 43774), (509, 41796), (516, 41229), (774, 27486), (972, 21887), (1018, 20898), (1161, 18324), (1527, 13932), (1548, 13743), (2036, 10449), (2322, 9162), (3054, 6966), (3483, 6108), (4581, 4644)]