21645756

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1163}}^1$

素因数の和:1231

約数の個数: 72

約数和(自身を含む): 61012224

約数和(自身を除く): 39366468

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 47, 66, 94, 99, 132, 141, 188, 198, 282, 396, 423, 517, 564, 846, 1034, 1163, 1551, 1692, 2068, 2326, 3102, 3489, 4652, 4653, 6204, 6978, 9306, 10467, 12793, 13956, 18612, 20934, 25586, 38379, 41868, 51172, 54661, 76758, 109322, 115137, 153516, 163983, 218644, 230274, 327966, 460548, 491949, 601271, 655932, 983898, 1202542, 1803813, 1967796, 2405084, 3607626, 5411439, 7215252, 10822878, 21645756]

約数ペア:

[(1, 21645756), (2, 10822878), (3, 7215252), (4, 5411439), (6, 3607626), (9, 2405084), (11, 1967796), (12, 1803813), (18, 1202542), (22, 983898), (33, 655932), (36, 601271), (44, 491949), (47, 460548), (66, 327966), (94, 230274), (99, 218644), (132, 163983), (141, 153516), (188, 115137), (198, 109322), (282, 76758), (396, 54661), (423, 51172), (517, 41868), (564, 38379), (846, 25586), (1034, 20934), (1163, 18612), (1551, 13956), (1692, 12793), (2068, 10467), (2326, 9306), (3102, 6978), (3489, 6204), (4652, 4653)]