21131030

素因数分解:

$2^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{4201}}^1$

素因数の和:4711

約数の個数: 16

約数和(自身を含む): 38120544

約数和(自身を除く): 16989514

約数列:

[1, 2, 5, 10, 503, 1006, 2515, 4201, 5030, 8402, 21005, 42010, 2113103, 4226206, 10565515, 21131030]

約数ペア:

[(1, 21131030), (2, 10565515), (5, 4226206), (10, 2113103), (503, 42010), (1006, 21005), (2515, 8402), (4201, 5030)]