21456432

素因数分解:

$2^4\times 3^2\times {\mathrm{109}}^1\times {\mathrm{1367}}^1$

素因数の和:1490

約数の個数: 60

約数和(自身を含む): 60643440

約数和(自身を除く): 39187008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 109, 144, 218, 327, 436, 654, 872, 981, 1308, 1367, 1744, 1962, 2616, 2734, 3924, 4101, 5232, 5468, 7848, 8202, 10936, 12303, 15696, 16404, 21872, 24606, 32808, 49212, 65616, 98424, 149003, 196848, 298006, 447009, 596012, 894018, 1192024, 1341027, 1788036, 2384048, 2682054, 3576072, 5364108, 7152144, 10728216, 21456432]

約数ペア:

[(1, 21456432), (2, 10728216), (3, 7152144), (4, 5364108), (6, 3576072), (8, 2682054), (9, 2384048), (12, 1788036), (16, 1341027), (18, 1192024), (24, 894018), (36, 596012), (48, 447009), (72, 298006), (109, 196848), (144, 149003), (218, 98424), (327, 65616), (436, 49212), (654, 32808), (872, 24606), (981, 21872), (1308, 16404), (1367, 15696), (1744, 12303), (1962, 10936), (2616, 8202), (2734, 7848), (3924, 5468), (4101, 5232)]