20725914

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 47393280

約数和(自身を除く): 26667366

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 67, 86, 109, 129, 134, 201, 218, 258, 327, 402, 473, 654, 737, 946, 1199, 1419, 1474, 2211, 2398, 2838, 2881, 3597, 4422, 4687, 5762, 7194, 7303, 8643, 9374, 14061, 14606, 17286, 21909, 28122, 31691, 43818, 51557, 63382, 80333, 95073, 103114, 154671, 160666, 190146, 240999, 309342, 314029, 481998, 628058, 942087, 1884174, 3454319, 6908638, 10362957, 20725914]

約数ペア:

[(1, 20725914), (2, 10362957), (3, 6908638), (6, 3454319), (11, 1884174), (22, 942087), (33, 628058), (43, 481998), (66, 314029), (67, 309342), (86, 240999), (109, 190146), (129, 160666), (134, 154671), (201, 103114), (218, 95073), (258, 80333), (327, 63382), (402, 51557), (473, 43818), (654, 31691), (737, 28122), (946, 21909), (1199, 17286), (1419, 14606), (1474, 14061), (2211, 9374), (2398, 8643), (2838, 7303), (2881, 7194), (3597, 5762), (4422, 4687)]