21301728

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31699}}^1$

素因数の和:31719

約数の個数: 48

約数和(自身を含む): 63907200

約数和(自身を除く): 42605472

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 31699, 63398, 95097, 126796, 190194, 221893, 253592, 380388, 443786, 507184, 665679, 760776, 887572, 1014368, 1331358, 1521552, 1775144, 2662716, 3043104, 3550288, 5325432, 7100576, 10650864, 21301728]

約数ペア:

[(1, 21301728), (2, 10650864), (3, 7100576), (4, 5325432), (6, 3550288), (7, 3043104), (8, 2662716), (12, 1775144), (14, 1521552), (16, 1331358), (21, 1014368), (24, 887572), (28, 760776), (32, 665679), (42, 507184), (48, 443786), (56, 380388), (84, 253592), (96, 221893), (112, 190194), (168, 126796), (224, 95097), (336, 63398), (672, 31699)]