21551784

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{523}}^1$

素因数の和:650

約数の個数: 64

約数和(自身を含む): 57723840

約数和(自身を除く): 36172056

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 101, 102, 136, 202, 204, 303, 404, 408, 523, 606, 808, 1046, 1212, 1569, 1717, 2092, 2424, 3138, 3434, 4184, 5151, 6276, 6868, 8891, 10302, 12552, 13736, 17782, 20604, 26673, 35564, 41208, 52823, 53346, 71128, 105646, 106692, 158469, 211292, 213384, 316938, 422584, 633876, 897991, 1267752, 1795982, 2693973, 3591964, 5387946, 7183928, 10775892, 21551784]

約数ペア:

[(1, 21551784), (2, 10775892), (3, 7183928), (4, 5387946), (6, 3591964), (8, 2693973), (12, 1795982), (17, 1267752), (24, 897991), (34, 633876), (51, 422584), (68, 316938), (101, 213384), (102, 211292), (136, 158469), (202, 106692), (204, 105646), (303, 71128), (404, 53346), (408, 52823), (523, 41208), (606, 35564), (808, 26673), (1046, 20604), (1212, 17782), (1569, 13736), (1717, 12552), (2092, 10302), (2424, 8891), (3138, 6868), (3434, 6276), (4184, 5151)]