21074095

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 30855168

約数和(自身を除く): 9781073

約数列:

[1, 5, 7, 23, 35, 47, 115, 161, 235, 329, 557, 805, 1081, 1645, 2785, 3899, 5405, 7567, 12811, 19495, 26179, 37835, 64055, 89677, 130895, 183253, 448385, 602117, 916265, 3010585, 4214819, 21074095]

約数ペア:

[(1, 21074095), (5, 4214819), (7, 3010585), (23, 916265), (35, 602117), (47, 448385), (115, 183253), (161, 130895), (235, 89677), (329, 64055), (557, 37835), (805, 26179), (1081, 19495), (1645, 12811), (2785, 7567), (3899, 5405)]