21691516

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{10061}}^1$

素因数の和:10090

約数の個数: 36

約数和(自身を含む): 48176856

約数和(自身を除く): 26485340

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 10061, 20122, 40244, 70427, 110671, 140854, 221342, 281708, 442684, 492989, 774697, 985978, 1549394, 1971956, 3098788, 5422879, 10845758, 21691516]

約数ペア:

[(1, 21691516), (2, 10845758), (4, 5422879), (7, 3098788), (11, 1971956), (14, 1549394), (22, 985978), (28, 774697), (44, 492989), (49, 442684), (77, 281708), (98, 221342), (154, 140854), (196, 110671), (308, 70427), (539, 40244), (1078, 20122), (2156, 10061)]