21349028

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{349}}^1\times {\mathrm{373}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 38484600

約数和(自身を除く): 17135572

約数列:

[1, 2, 4, 41, 82, 164, 349, 373, 698, 746, 1396, 1492, 14309, 15293, 28618, 30586, 57236, 61172, 130177, 260354, 520708, 5337257, 10674514, 21349028]

約数ペア:

[(1, 21349028), (2, 10674514), (4, 5337257), (41, 520708), (82, 260354), (164, 130177), (349, 61172), (373, 57236), (698, 30586), (746, 28618), (1396, 15293), (1492, 14309)]