21016212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3167}}^1$

素因数の和:3260

約数の個数: 48

約数和(自身を含む): 56770560

約数和(自身を除く): 35754348

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 79, 84, 158, 237, 316, 474, 553, 948, 1106, 1659, 2212, 3167, 3318, 6334, 6636, 9501, 12668, 19002, 22169, 38004, 44338, 66507, 88676, 133014, 250193, 266028, 500386, 750579, 1000772, 1501158, 1751351, 3002316, 3502702, 5254053, 7005404, 10508106, 21016212]

約数ペア:

[(1, 21016212), (2, 10508106), (3, 7005404), (4, 5254053), (6, 3502702), (7, 3002316), (12, 1751351), (14, 1501158), (21, 1000772), (28, 750579), (42, 500386), (79, 266028), (84, 250193), (158, 133014), (237, 88676), (316, 66507), (474, 44338), (553, 38004), (948, 22169), (1106, 19002), (1659, 12668), (2212, 9501), (3167, 6636), (3318, 6334)]