19101015

素因数分解:

$3^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 34944000

約数和(自身を除く): 15842985

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 81, 135, 199, 237, 243, 395, 405, 597, 711, 995, 1185, 1215, 1791, 2133, 2985, 3555, 5373, 6399, 8955, 10665, 15721, 16119, 19197, 26865, 31995, 47163, 48357, 78605, 80595, 95985, 141489, 235815, 241785, 424467, 707445, 1273401, 2122335, 3820203, 6367005, 19101015]

約数ペア:

[(1, 19101015), (3, 6367005), (5, 3820203), (9, 2122335), (15, 1273401), (27, 707445), (45, 424467), (79, 241785), (81, 235815), (135, 141489), (199, 95985), (237, 80595), (243, 78605), (395, 48357), (405, 47163), (597, 31995), (711, 26865), (995, 19197), (1185, 16119), (1215, 15721), (1791, 10665), (2133, 8955), (2985, 6399), (3555, 5373)]