21605436

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:891

約数の個数: 72

約数和(自身を含む): 59243184

約数和(自身を除く): 37637748

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 43, 51, 68, 86, 102, 129, 153, 172, 204, 258, 306, 387, 516, 612, 731, 774, 821, 1462, 1548, 1642, 2193, 2463, 2924, 3284, 4386, 4926, 6579, 7389, 8772, 9852, 13158, 13957, 14778, 26316, 27914, 29556, 35303, 41871, 55828, 70606, 83742, 105909, 125613, 141212, 167484, 211818, 251226, 317727, 423636, 502452, 600151, 635454, 1200302, 1270908, 1800453, 2400604, 3600906, 5401359, 7201812, 10802718, 21605436]

約数ペア:

[(1, 21605436), (2, 10802718), (3, 7201812), (4, 5401359), (6, 3600906), (9, 2400604), (12, 1800453), (17, 1270908), (18, 1200302), (34, 635454), (36, 600151), (43, 502452), (51, 423636), (68, 317727), (86, 251226), (102, 211818), (129, 167484), (153, 141212), (172, 125613), (204, 105909), (258, 83742), (306, 70606), (387, 55828), (516, 41871), (612, 35303), (731, 29556), (774, 27914), (821, 26316), (1462, 14778), (1548, 13957), (1642, 13158), (2193, 9852), (2463, 8772), (2924, 7389), (3284, 6579), (4386, 4926)]