21319032

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1123}}^1$

素因数の和:1252

約数の個数: 64

約数和(自身を含む): 61505280

約数和(自身を除く): 40186248

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 113, 168, 226, 339, 452, 678, 791, 904, 1123, 1356, 1582, 2246, 2373, 2712, 3164, 3369, 4492, 4746, 6328, 6738, 7861, 8984, 9492, 13476, 15722, 18984, 23583, 26952, 31444, 47166, 62888, 94332, 126899, 188664, 253798, 380697, 507596, 761394, 888293, 1015192, 1522788, 1776586, 2664879, 3045576, 3553172, 5329758, 7106344, 10659516, 21319032]

約数ペア:

[(1, 21319032), (2, 10659516), (3, 7106344), (4, 5329758), (6, 3553172), (7, 3045576), (8, 2664879), (12, 1776586), (14, 1522788), (21, 1015192), (24, 888293), (28, 761394), (42, 507596), (56, 380697), (84, 253798), (113, 188664), (168, 126899), (226, 94332), (339, 62888), (452, 47166), (678, 31444), (791, 26952), (904, 23583), (1123, 18984), (1356, 15722), (1582, 13476), (2246, 9492), (2373, 8984), (2712, 7861), (3164, 6738), (3369, 6328), (4492, 4746)]