21102290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4679}}^1$

素因数の和:4738

約数の個数: 32

約数和(自身を含む): 42456960

約数和(自身を除く): 21354670

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4510, 4679, 9358, 23395, 46790, 51469, 102938, 191839, 257345, 383678, 514690, 959195, 1918390, 2110229, 4220458, 10551145, 21102290]

約数ペア:

[(1, 21102290), (2, 10551145), (5, 4220458), (10, 2110229), (11, 1918390), (22, 959195), (41, 514690), (55, 383678), (82, 257345), (110, 191839), (205, 102938), (410, 51469), (451, 46790), (902, 23395), (2255, 9358), (4510, 4679)]