21290944

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{17509}}^1$

素因数の和:17540

約数の個数: 28

約数和(自身を含む): 44475400

約数和(自身を除く): 23184456

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216, 17509, 35018, 70036, 140072, 280144, 332671, 560288, 665342, 1120576, 1330684, 2661368, 5322736, 10645472, 21290944]

約数ペア:

[(1, 21290944), (2, 10645472), (4, 5322736), (8, 2661368), (16, 1330684), (19, 1120576), (32, 665342), (38, 560288), (64, 332671), (76, 280144), (152, 140072), (304, 70036), (608, 35018), (1216, 17509)]