21759966

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 72

約数和(自身を含む): 51723360

約数和(自身を除く): 29963394

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 47, 51, 89, 94, 102, 141, 153, 178, 267, 282, 289, 306, 423, 534, 578, 799, 801, 846, 867, 1513, 1598, 1602, 1734, 2397, 2601, 3026, 4183, 4539, 4794, 5202, 7191, 8366, 9078, 12549, 13583, 13617, 14382, 25098, 25721, 27166, 27234, 37647, 40749, 51442, 71111, 75294, 77163, 81498, 122247, 142222, 154326, 213333, 231489, 244494, 426666, 462978, 639999, 1208887, 1279998, 2417774, 3626661, 7253322, 10879983, 21759966]

約数ペア:

[(1, 21759966), (2, 10879983), (3, 7253322), (6, 3626661), (9, 2417774), (17, 1279998), (18, 1208887), (34, 639999), (47, 462978), (51, 426666), (89, 244494), (94, 231489), (102, 213333), (141, 154326), (153, 142222), (178, 122247), (267, 81498), (282, 77163), (289, 75294), (306, 71111), (423, 51442), (534, 40749), (578, 37647), (799, 27234), (801, 27166), (846, 25721), (867, 25098), (1513, 14382), (1598, 13617), (1602, 13583), (1734, 12549), (2397, 9078), (2601, 8366), (3026, 7191), (4183, 5202), (4539, 4794)]