21990588

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^3\times {\mathrm{373}}^1$

素因数の和:431

約数の個数: 48

約数和(自身を含む): 54663840

約数和(自身を除く): 32673252

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 289, 373, 578, 746, 867, 1119, 1156, 1492, 1734, 2238, 3468, 4476, 4913, 6341, 9826, 12682, 14739, 19023, 19652, 25364, 29478, 38046, 58956, 76092, 107797, 215594, 323391, 431188, 646782, 1293564, 1832549, 3665098, 5497647, 7330196, 10995294, 21990588]

約数ペア:

[(1, 21990588), (2, 10995294), (3, 7330196), (4, 5497647), (6, 3665098), (12, 1832549), (17, 1293564), (34, 646782), (51, 431188), (68, 323391), (102, 215594), (204, 107797), (289, 76092), (373, 58956), (578, 38046), (746, 29478), (867, 25364), (1119, 19652), (1156, 19023), (1492, 14739), (1734, 12682), (2238, 9826), (3468, 6341), (4476, 4913)]