18895443

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 33177600

約数和(自身を除く): 14282157

約数列:

[1, 3, 7, 19, 21, 23, 29, 57, 69, 71, 87, 133, 161, 203, 213, 399, 437, 483, 497, 551, 609, 667, 1311, 1349, 1491, 1633, 1653, 2001, 2059, 3059, 3857, 4047, 4669, 4899, 6177, 9177, 9443, 11431, 11571, 12673, 14007, 14413, 28329, 31027, 34293, 38019, 39121, 43239, 47357, 88711, 93081, 117363, 142071, 217189, 266133, 273847, 331499, 651567, 821541, 899783, 994497, 2699349, 6298481, 18895443]

約数ペア:

[(1, 18895443), (3, 6298481), (7, 2699349), (19, 994497), (21, 899783), (23, 821541), (29, 651567), (57, 331499), (69, 273847), (71, 266133), (87, 217189), (133, 142071), (161, 117363), (203, 93081), (213, 88711), (399, 47357), (437, 43239), (483, 39121), (497, 38019), (551, 34293), (609, 31027), (667, 28329), (1311, 14413), (1349, 14007), (1491, 12673), (1633, 11571), (1653, 11431), (2001, 9443), (2059, 9177), (3059, 6177), (3857, 4899), (4047, 4669)]