263711217

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 454164480

約数和(自身を除く): 190453263

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 129, 139, 191, 231, 301, 417, 473, 573, 903, 973, 1337, 1419, 1529, 2101, 2919, 3311, 4011, 4587, 5977, 6303, 8213, 9933, 10703, 14707, 17931, 24639, 26549, 32109, 41839, 44121, 57491, 65747, 79647, 90343, 125517, 172473, 185843, 197241, 271029, 292039, 460229, 557529, 632401, 876117, 1141607, 1380687, 1897203, 2044273, 3424821, 6132819, 7991249, 12557677, 23973747, 37673031, 87903739, 263711217]

約数ペア:

[(1, 263711217), (3, 87903739), (7, 37673031), (11, 23973747), (21, 12557677), (33, 7991249), (43, 6132819), (77, 3424821), (129, 2044273), (139, 1897203), (191, 1380687), (231, 1141607), (301, 876117), (417, 632401), (473, 557529), (573, 460229), (903, 292039), (973, 271029), (1337, 197241), (1419, 185843), (1529, 172473), (2101, 125517), (2919, 90343), (3311, 79647), (4011, 65747), (4587, 57491), (5977, 44121), (6303, 41839), (8213, 32109), (9933, 26549), (10703, 24639), (14707, 17931)]