21053450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 43256160

約数和(自身を除く): 22202710

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 101, 110, 202, 275, 379, 505, 550, 758, 1010, 1111, 1895, 2222, 2525, 3790, 4169, 5050, 5555, 8338, 9475, 11110, 18950, 20845, 27775, 38279, 41690, 55550, 76558, 104225, 191395, 208450, 382790, 421069, 842138, 956975, 1913950, 2105345, 4210690, 10526725, 21053450]

約数ペア:

[(1, 21053450), (2, 10526725), (5, 4210690), (10, 2105345), (11, 1913950), (22, 956975), (25, 842138), (50, 421069), (55, 382790), (101, 208450), (110, 191395), (202, 104225), (275, 76558), (379, 55550), (505, 41690), (550, 38279), (758, 27775), (1010, 20845), (1111, 18950), (1895, 11110), (2222, 9475), (2525, 8338), (3790, 5555), (4169, 5050)]