2021221000

素因数分解:

$2^3\times 5^3\times {\mathrm{421}}^1\times {\mathrm{4801}}^1$

素因数の和:5243

約数の個数: 64

約数和(自身を含む): 4741878960

約数和(自身を除く): 2720657960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 421, 500, 842, 1000, 1684, 2105, 3368, 4210, 4801, 8420, 9602, 10525, 16840, 19204, 21050, 24005, 38408, 42100, 48010, 52625, 84200, 96020, 105250, 120025, 192040, 210500, 240050, 421000, 480100, 600125, 960200, 1200250, 2021221, 2400500, 4042442, 4801000, 8084884, 10106105, 16169768, 20212210, 40424420, 50530525, 80848840, 101061050, 202122100, 252652625, 404244200, 505305250, 1010610500, 2021221000]

約数ペア:

[(1, 2021221000), (2, 1010610500), (4, 505305250), (5, 404244200), (8, 252652625), (10, 202122100), (20, 101061050), (25, 80848840), (40, 50530525), (50, 40424420), (100, 20212210), (125, 16169768), (200, 10106105), (250, 8084884), (421, 4801000), (500, 4042442), (842, 2400500), (1000, 2021221), (1684, 1200250), (2105, 960200), (3368, 600125), (4210, 480100), (4801, 421000), (8420, 240050), (9602, 210500), (10525, 192040), (16840, 120025), (19204, 105250), (21050, 96020), (24005, 84200), (38408, 52625), (42100, 48010)]