20983472

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1103}}^1$

素因数の和:1181

約数の個数: 40

約数和(自身を含む): 43122240

約数和(自身を除く): 22138768

約数列:

[1, 2, 4, 8, 16, 29, 41, 58, 82, 116, 164, 232, 328, 464, 656, 1103, 1189, 2206, 2378, 4412, 4756, 8824, 9512, 17648, 19024, 31987, 45223, 63974, 90446, 127948, 180892, 255896, 361784, 511792, 723568, 1311467, 2622934, 5245868, 10491736, 20983472]

約数ペア:

[(1, 20983472), (2, 10491736), (4, 5245868), (8, 2622934), (16, 1311467), (29, 723568), (41, 511792), (58, 361784), (82, 255896), (116, 180892), (164, 127948), (232, 90446), (328, 63974), (464, 45223), (656, 31987), (1103, 19024), (1189, 17648), (2206, 9512), (2378, 8824), (4412, 4756)]