20409741

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 34751808

約数和(自身を除く): 14342067

約数列:

[1, 3, 9, 11, 17, 33, 51, 67, 99, 153, 181, 187, 201, 543, 561, 603, 737, 1139, 1629, 1683, 1991, 2211, 3077, 3417, 5973, 6633, 9231, 10251, 12127, 12529, 17919, 27693, 33847, 36381, 37587, 101541, 109143, 112761, 133397, 206159, 304623, 400191, 618477, 1200573, 1855431, 2267749, 6803247, 20409741]

約数ペア:

[(1, 20409741), (3, 6803247), (9, 2267749), (11, 1855431), (17, 1200573), (33, 618477), (51, 400191), (67, 304623), (99, 206159), (153, 133397), (181, 112761), (187, 109143), (201, 101541), (543, 37587), (561, 36381), (603, 33847), (737, 27693), (1139, 17919), (1629, 12529), (1683, 12127), (1991, 10251), (2211, 9231), (3077, 6633), (3417, 5973)]