18520299

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 33792000

約数和(自身を除く): 15271701

約数列:

[1, 3, 7, 9, 21, 27, 29, 31, 63, 87, 93, 109, 189, 203, 217, 261, 279, 327, 609, 651, 763, 783, 837, 899, 981, 1827, 1953, 2289, 2697, 2943, 3161, 3379, 5481, 5859, 6293, 6867, 8091, 9483, 10137, 18879, 20601, 22127, 23653, 24273, 28449, 30411, 56637, 66381, 70959, 85347, 91233, 97991, 169911, 199143, 212877, 293973, 597429, 638631, 685937, 881919, 2057811, 2645757, 6173433, 18520299]

約数ペア:

[(1, 18520299), (3, 6173433), (7, 2645757), (9, 2057811), (21, 881919), (27, 685937), (29, 638631), (31, 597429), (63, 293973), (87, 212877), (93, 199143), (109, 169911), (189, 97991), (203, 91233), (217, 85347), (261, 70959), (279, 66381), (327, 56637), (609, 30411), (651, 28449), (763, 24273), (783, 23653), (837, 22127), (899, 20601), (981, 18879), (1827, 10137), (1953, 9483), (2289, 8091), (2697, 6867), (2943, 6293), (3161, 5859), (3379, 5481)]