21513336

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1301}}^1$

素因数の和:1376

約数の個数: 64

約数和(自身を含む): 59058720

約数和(自身を除く): 37545384

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 53, 78, 104, 106, 156, 159, 212, 312, 318, 424, 636, 689, 1272, 1301, 1378, 2067, 2602, 2756, 3903, 4134, 5204, 5512, 7806, 8268, 10408, 15612, 16536, 16913, 31224, 33826, 50739, 67652, 68953, 101478, 135304, 137906, 202956, 206859, 275812, 405912, 413718, 551624, 827436, 896389, 1654872, 1792778, 2689167, 3585556, 5378334, 7171112, 10756668, 21513336]

約数ペア:

[(1, 21513336), (2, 10756668), (3, 7171112), (4, 5378334), (6, 3585556), (8, 2689167), (12, 1792778), (13, 1654872), (24, 896389), (26, 827436), (39, 551624), (52, 413718), (53, 405912), (78, 275812), (104, 206859), (106, 202956), (156, 137906), (159, 135304), (212, 101478), (312, 68953), (318, 67652), (424, 50739), (636, 33826), (689, 31224), (1272, 16913), (1301, 16536), (1378, 15612), (2067, 10408), (2602, 8268), (2756, 7806), (3903, 5512), (4134, 5204)]