21128904

素因数分解:

$2^3\times 3^3\times {\mathrm{23}}^1\times {\mathrm{4253}}^1$

素因数の和:4291

約数の個数: 64

約数和(自身を含む): 61257600

約数和(自身を除く): 40128696

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 46, 54, 69, 72, 92, 108, 138, 184, 207, 216, 276, 414, 552, 621, 828, 1242, 1656, 2484, 4253, 4968, 8506, 12759, 17012, 25518, 34024, 38277, 51036, 76554, 97819, 102072, 114831, 153108, 195638, 229662, 293457, 306216, 391276, 459324, 586914, 782552, 880371, 918648, 1173828, 1760742, 2347656, 2641113, 3521484, 5282226, 7042968, 10564452, 21128904]

約数ペア:

[(1, 21128904), (2, 10564452), (3, 7042968), (4, 5282226), (6, 3521484), (8, 2641113), (9, 2347656), (12, 1760742), (18, 1173828), (23, 918648), (24, 880371), (27, 782552), (36, 586914), (46, 459324), (54, 391276), (69, 306216), (72, 293457), (92, 229662), (108, 195638), (138, 153108), (184, 114831), (207, 102072), (216, 97819), (276, 76554), (414, 51036), (552, 38277), (621, 34024), (828, 25518), (1242, 17012), (1656, 12759), (2484, 8506), (4253, 4968)]