19551812

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 21090748

約数列:

[1, 2, 4, 7, 14, 28, 47, 83, 94, 166, 179, 188, 329, 332, 358, 581, 658, 716, 1162, 1253, 1316, 2324, 2506, 3901, 5012, 7802, 8413, 14857, 15604, 16826, 27307, 29714, 33652, 54614, 58891, 59428, 103999, 109228, 117782, 207998, 235564, 415996, 698279, 1396558, 2793116, 4887953, 9775906, 19551812]

約数ペア:

[(1, 19551812), (2, 9775906), (4, 4887953), (7, 2793116), (14, 1396558), (28, 698279), (47, 415996), (83, 235564), (94, 207998), (166, 117782), (179, 109228), (188, 103999), (329, 59428), (332, 58891), (358, 54614), (581, 33652), (658, 29714), (716, 27307), (1162, 16826), (1253, 15604), (1316, 14857), (2324, 8413), (2506, 7802), (3901, 5012)]