20973378

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 46305216

約数和(自身を除く): 25331838

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 114, 138, 361, 421, 437, 722, 842, 874, 1083, 1263, 1311, 2166, 2526, 2622, 7999, 8303, 9683, 15998, 16606, 19366, 23997, 24909, 29049, 47994, 49818, 58098, 151981, 183977, 303962, 367954, 455943, 551931, 911886, 1103862, 3495563, 6991126, 10486689, 20973378]

約数ペア:

[(1, 20973378), (2, 10486689), (3, 6991126), (6, 3495563), (19, 1103862), (23, 911886), (38, 551931), (46, 455943), (57, 367954), (69, 303962), (114, 183977), (138, 151981), (361, 58098), (421, 49818), (437, 47994), (722, 29049), (842, 24909), (874, 23997), (1083, 19366), (1263, 16606), (1311, 15998), (2166, 9683), (2526, 8303), (2622, 7999)]