19723672

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 41445000

約数和(自身を除く): 21721328

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 289, 323, 449, 578, 646, 898, 1156, 1292, 1796, 2312, 2584, 3592, 5491, 7633, 8531, 10982, 15266, 17062, 21964, 30532, 34124, 43928, 61064, 68248, 129761, 145027, 259522, 290054, 519044, 580108, 1038088, 1160216, 2465459, 4930918, 9861836, 19723672]

約数ペア:

[(1, 19723672), (2, 9861836), (4, 4930918), (8, 2465459), (17, 1160216), (19, 1038088), (34, 580108), (38, 519044), (68, 290054), (76, 259522), (136, 145027), (152, 129761), (289, 68248), (323, 61064), (449, 43928), (578, 34124), (646, 30532), (898, 21964), (1156, 17062), (1292, 15266), (1796, 10982), (2312, 8531), (2584, 7633), (3592, 5491)]