28307169

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 47736000

約数和(自身を除く): 19428831

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 101, 149, 171, 209, 303, 447, 627, 909, 1111, 1341, 1639, 1881, 1919, 2831, 3333, 4917, 5757, 8493, 9999, 14751, 15049, 17271, 21109, 25479, 31141, 45147, 63327, 93423, 135441, 165539, 189981, 280269, 285931, 496617, 857793, 1489851, 2573379, 3145241, 9435723, 28307169]

約数ペア:

[(1, 28307169), (3, 9435723), (9, 3145241), (11, 2573379), (19, 1489851), (33, 857793), (57, 496617), (99, 285931), (101, 280269), (149, 189981), (171, 165539), (209, 135441), (303, 93423), (447, 63327), (627, 45147), (909, 31141), (1111, 25479), (1341, 21109), (1639, 17271), (1881, 15049), (1919, 14751), (2831, 9999), (3333, 8493), (4917, 5757)]