20938533

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 37034496

約数和(自身を除く): 16095963

約数列:

[1, 3, 7, 11, 21, 23, 33, 49, 69, 77, 147, 161, 231, 253, 483, 539, 563, 759, 1127, 1617, 1689, 1771, 3381, 3941, 5313, 6193, 11823, 12397, 12949, 18579, 27587, 37191, 38847, 43351, 82761, 90643, 130053, 142439, 271929, 303457, 427317, 634501, 910371, 997073, 1903503, 2991219, 6979511, 20938533]

約数ペア:

[(1, 20938533), (3, 6979511), (7, 2991219), (11, 1903503), (21, 997073), (23, 910371), (33, 634501), (49, 427317), (69, 303457), (77, 271929), (147, 142439), (161, 130053), (231, 90643), (253, 82761), (483, 43351), (539, 38847), (563, 37191), (759, 27587), (1127, 18579), (1617, 12949), (1689, 12397), (1771, 11823), (3381, 6193), (3941, 5313)]