21605544

素因数分解:

$2^3\times 3^2\times {\mathrm{109}}^1\times {\mathrm{2753}}^1$

素因数の和:2874

約数の個数: 48

約数和(自身を含む): 59073300

約数和(自身を除く): 37467756

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 109, 218, 327, 436, 654, 872, 981, 1308, 1962, 2616, 2753, 3924, 5506, 7848, 8259, 11012, 16518, 22024, 24777, 33036, 49554, 66072, 99108, 198216, 300077, 600154, 900231, 1200308, 1800462, 2400616, 2700693, 3600924, 5401386, 7201848, 10802772, 21605544]

約数ペア:

[(1, 21605544), (2, 10802772), (3, 7201848), (4, 5401386), (6, 3600924), (8, 2700693), (9, 2400616), (12, 1800462), (18, 1200308), (24, 900231), (36, 600154), (72, 300077), (109, 198216), (218, 99108), (327, 66072), (436, 49554), (654, 33036), (872, 24777), (981, 22024), (1308, 16518), (1962, 11012), (2616, 8259), (2753, 7848), (3924, 5506)]