20917368

素因数分解:

$2^3\times 3^2\times {\mathrm{353}}^1\times {\mathrm{823}}^1$

素因数の和:1188

約数の個数: 48

約数和(自身を含む): 56880720

約数和(自身を除く): 35963352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 353, 706, 823, 1059, 1412, 1646, 2118, 2469, 2824, 3177, 3292, 4236, 4938, 6354, 6584, 7407, 8472, 9876, 12708, 14814, 19752, 25416, 29628, 59256, 290519, 581038, 871557, 1162076, 1743114, 2324152, 2614671, 3486228, 5229342, 6972456, 10458684, 20917368]

約数ペア:

[(1, 20917368), (2, 10458684), (3, 6972456), (4, 5229342), (6, 3486228), (8, 2614671), (9, 2324152), (12, 1743114), (18, 1162076), (24, 871557), (36, 581038), (72, 290519), (353, 59256), (706, 29628), (823, 25416), (1059, 19752), (1412, 14814), (1646, 12708), (2118, 9876), (2469, 8472), (2824, 7407), (3177, 6584), (3292, 6354), (4236, 4938)]