1738689981

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{787}}^1$

素因数の和:943

約数の個数: 64

約数和(自身を含む): 2874624000

約数和(自身を除く): 1135934019

約数列:

[1, 3, 7, 19, 21, 49, 57, 113, 133, 147, 339, 343, 399, 787, 791, 931, 1029, 2147, 2361, 2373, 2793, 5509, 5537, 6441, 6517, 14953, 15029, 16527, 16611, 19551, 38563, 38759, 44859, 45087, 88931, 104671, 105203, 115689, 116277, 266793, 269941, 314013, 315609, 622517, 732697, 736421, 809823, 1689689, 1867551, 2198091, 2209263, 4357619, 5069067, 5128879, 11827823, 13072857, 15386637, 30503333, 35483469, 82794761, 91509999, 248384283, 579563327, 1738689981]

約数ペア:

[(1, 1738689981), (3, 579563327), (7, 248384283), (19, 91509999), (21, 82794761), (49, 35483469), (57, 30503333), (113, 15386637), (133, 13072857), (147, 11827823), (339, 5128879), (343, 5069067), (399, 4357619), (787, 2209263), (791, 2198091), (931, 1867551), (1029, 1689689), (2147, 809823), (2361, 736421), (2373, 732697), (2793, 622517), (5509, 315609), (5537, 314013), (6441, 269941), (6517, 266793), (14953, 116277), (15029, 115689), (16527, 105203), (16611, 104671), (19551, 88931), (38563, 45087), (38759, 44859)]