19722087

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 35942400

約数和(自身を除く): 16220313

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 149, 191, 231, 447, 573, 693, 1043, 1337, 1341, 1639, 1719, 2101, 3129, 4011, 4917, 6303, 9387, 11473, 12033, 14707, 14751, 18909, 28459, 34419, 44121, 85377, 103257, 132363, 199213, 256131, 313049, 597639, 939147, 1792917, 2191343, 2817441, 6574029, 19722087]

約数ペア:

[(1, 19722087), (3, 6574029), (7, 2817441), (9, 2191343), (11, 1792917), (21, 939147), (33, 597639), (63, 313049), (77, 256131), (99, 199213), (149, 132363), (191, 103257), (231, 85377), (447, 44121), (573, 34419), (693, 28459), (1043, 18909), (1337, 14751), (1341, 14707), (1639, 12033), (1719, 11473), (2101, 9387), (3129, 6303), (4011, 4917)]