21311290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2129}}^1$

素因数の和:2167

約数の個数: 64

約数和(自身を含む): 51528960

約数和(自身を除く): 30217670

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 2129, 4258, 5005, 10010, 10645, 14903, 21290, 23419, 27677, 29806, 46838, 55354, 74515, 117095, 138385, 149030, 163933, 193739, 234190, 276770, 304447, 327866, 387478, 608894, 819665, 968695, 1522235, 1639330, 1937390, 2131129, 3044470, 4262258, 10655645, 21311290]

約数ペア:

[(1, 21311290), (2, 10655645), (5, 4262258), (7, 3044470), (10, 2131129), (11, 1937390), (13, 1639330), (14, 1522235), (22, 968695), (26, 819665), (35, 608894), (55, 387478), (65, 327866), (70, 304447), (77, 276770), (91, 234190), (110, 193739), (130, 163933), (143, 149030), (154, 138385), (182, 117095), (286, 74515), (385, 55354), (455, 46838), (715, 29806), (770, 27677), (910, 23419), (1001, 21290), (1430, 14903), (2002, 10645), (2129, 10010), (4258, 5005)]