16521675

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 28807680

約数和(自身を除く): 12286005

約数列:

[1, 3, 5, 15, 25, 43, 47, 75, 109, 129, 141, 215, 235, 327, 545, 645, 705, 1075, 1175, 1635, 2021, 2725, 3225, 3525, 4687, 5123, 6063, 8175, 10105, 14061, 15369, 23435, 25615, 30315, 50525, 70305, 76845, 117175, 128075, 151575, 220289, 351525, 384225, 660867, 1101445, 3304335, 5507225, 16521675]

約数ペア:

[(1, 16521675), (3, 5507225), (5, 3304335), (15, 1101445), (25, 660867), (43, 384225), (47, 351525), (75, 220289), (109, 151575), (129, 128075), (141, 117175), (215, 76845), (235, 70305), (327, 50525), (545, 30315), (645, 25615), (705, 23435), (1075, 15369), (1175, 14061), (1635, 10105), (2021, 8175), (2725, 6063), (3225, 5123), (3525, 4687)]