19999548

素因数分解:

$2^2\times 3^4\times {\mathrm{17}}^1\times {\mathrm{3631}}^1$

素因数の和:3664

約数の個数: 60

約数和(自身を含む): 55373472

約数和(自身を除く): 35373924

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 81, 102, 108, 153, 162, 204, 306, 324, 459, 612, 918, 1377, 1836, 2754, 3631, 5508, 7262, 10893, 14524, 21786, 32679, 43572, 61727, 65358, 98037, 123454, 130716, 185181, 196074, 246908, 294111, 370362, 392148, 555543, 588222, 740724, 1111086, 1176444, 1666629, 2222172, 3333258, 4999887, 6666516, 9999774, 19999548]

約数ペア:

[(1, 19999548), (2, 9999774), (3, 6666516), (4, 4999887), (6, 3333258), (9, 2222172), (12, 1666629), (17, 1176444), (18, 1111086), (27, 740724), (34, 588222), (36, 555543), (51, 392148), (54, 370362), (68, 294111), (81, 246908), (102, 196074), (108, 185181), (153, 130716), (162, 123454), (204, 98037), (306, 65358), (324, 61727), (459, 43572), (612, 32679), (918, 21786), (1377, 14524), (1836, 10893), (2754, 7262), (3631, 5508)]