21329325

素因数分解:

$3^5\times 5^2\times {\mathrm{3511}}^1$

素因数の和:3536

約数の個数: 36

約数和(自身を含む): 39629408

約数和(自身を除く): 18300083

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 3511, 6075, 10533, 17555, 31599, 52665, 87775, 94797, 157995, 263325, 284391, 473985, 789975, 853173, 1421955, 2369925, 4265865, 7109775, 21329325]

約数ペア:

[(1, 21329325), (3, 7109775), (5, 4265865), (9, 2369925), (15, 1421955), (25, 853173), (27, 789975), (45, 473985), (75, 284391), (81, 263325), (135, 157995), (225, 94797), (243, 87775), (405, 52665), (675, 31599), (1215, 17555), (2025, 10533), (3511, 6075)]