21000391644

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{849943}}^1$

素因数の和:850050

約数の個数: 48

約数和(自身を含む): 51404613120

約数和(自身を除く): 30404221476

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 71, 87, 116, 142, 174, 213, 284, 348, 426, 852, 2059, 4118, 6177, 8236, 12354, 24708, 849943, 1699886, 2549829, 3399772, 5099658, 10199316, 24648347, 49296694, 60345953, 73945041, 98593388, 120691906, 147890082, 181037859, 241383812, 295780164, 362075718, 724151436, 1750032637, 3500065274, 5250097911, 7000130548, 10500195822, 21000391644]

約数ペア:

[(1, 21000391644), (2, 10500195822), (3, 7000130548), (4, 5250097911), (6, 3500065274), (12, 1750032637), (29, 724151436), (58, 362075718), (71, 295780164), (87, 241383812), (116, 181037859), (142, 147890082), (174, 120691906), (213, 98593388), (284, 73945041), (348, 60345953), (426, 49296694), (852, 24648347), (2059, 10199316), (4118, 5099658), (6177, 3399772), (8236, 2549829), (12354, 1699886), (24708, 849943)]