20321766

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 80

約数和(自身を含む): 49553856

約数和(自身を除く): 29232090

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 47, 51, 54, 81, 94, 102, 141, 153, 157, 162, 282, 306, 314, 423, 459, 471, 799, 846, 918, 942, 1269, 1377, 1413, 1598, 2397, 2538, 2669, 2754, 2826, 3807, 4239, 4794, 5338, 7191, 7379, 7614, 8007, 8478, 12717, 14382, 14758, 16014, 21573, 22137, 24021, 25434, 43146, 44274, 48042, 64719, 66411, 72063, 125443, 129438, 132822, 144126, 199233, 216189, 250886, 376329, 398466, 432378, 597699, 752658, 1128987, 1195398, 2257974, 3386961, 6773922, 10160883, 20321766]

約数ペア:

[(1, 20321766), (2, 10160883), (3, 6773922), (6, 3386961), (9, 2257974), (17, 1195398), (18, 1128987), (27, 752658), (34, 597699), (47, 432378), (51, 398466), (54, 376329), (81, 250886), (94, 216189), (102, 199233), (141, 144126), (153, 132822), (157, 129438), (162, 125443), (282, 72063), (306, 66411), (314, 64719), (423, 48042), (459, 44274), (471, 43146), (799, 25434), (846, 24021), (918, 22137), (942, 21573), (1269, 16014), (1377, 14758), (1413, 14382), (1598, 12717), (2397, 8478), (2538, 8007), (2669, 7614), (2754, 7379), (2826, 7191), (3807, 5338), (4239, 4794)]