21245004

素因数分解:

$2^2\times 3^5\times {\mathrm{11}}^1\times {\mathrm{1987}}^1$

素因数の和:2017

約数の個数: 72

約数和(自身を含む): 60785088

約数和(自身を除く): 39540084

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 81, 99, 108, 132, 162, 198, 243, 297, 324, 396, 486, 594, 891, 972, 1188, 1782, 1987, 2673, 3564, 3974, 5346, 5961, 7948, 10692, 11922, 17883, 21857, 23844, 35766, 43714, 53649, 65571, 71532, 87428, 107298, 131142, 160947, 196713, 214596, 262284, 321894, 393426, 482841, 590139, 643788, 786852, 965682, 1180278, 1770417, 1931364, 2360556, 3540834, 5311251, 7081668, 10622502, 21245004]

約数ペア:

[(1, 21245004), (2, 10622502), (3, 7081668), (4, 5311251), (6, 3540834), (9, 2360556), (11, 1931364), (12, 1770417), (18, 1180278), (22, 965682), (27, 786852), (33, 643788), (36, 590139), (44, 482841), (54, 393426), (66, 321894), (81, 262284), (99, 214596), (108, 196713), (132, 160947), (162, 131142), (198, 107298), (243, 87428), (297, 71532), (324, 65571), (396, 53649), (486, 43714), (594, 35766), (891, 23844), (972, 21857), (1188, 17883), (1782, 11922), (1987, 10692), (2673, 7948), (3564, 5961), (3974, 5346)]