21427308

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{4049}}^1$

素因数の和:4076

約数の個数: 72

約数和(自身を含む): 64638000

約数和(自身を除く): 43210692

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 4049, 5292, 8098, 12147, 16196, 24294, 28343, 36441, 48588, 56686, 72882, 85029, 109323, 113372, 145764, 170058, 198401, 218646, 255087, 340116, 396802, 437292, 510174, 595203, 765261, 793604, 1020348, 1190406, 1530522, 1785609, 2380812, 3061044, 3571218, 5356827, 7142436, 10713654, 21427308]

約数ペア:

[(1, 21427308), (2, 10713654), (3, 7142436), (4, 5356827), (6, 3571218), (7, 3061044), (9, 2380812), (12, 1785609), (14, 1530522), (18, 1190406), (21, 1020348), (27, 793604), (28, 765261), (36, 595203), (42, 510174), (49, 437292), (54, 396802), (63, 340116), (84, 255087), (98, 218646), (108, 198401), (126, 170058), (147, 145764), (189, 113372), (196, 109323), (252, 85029), (294, 72882), (378, 56686), (441, 48588), (588, 36441), (756, 28343), (882, 24294), (1323, 16196), (1764, 12147), (2646, 8098), (4049, 5292)]