21063375

素因数分解:

$3^3\times 5^3\times {\mathrm{79}}^2$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 39443040

約数和(自身を除く): 18379665

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 79, 125, 135, 225, 237, 375, 395, 675, 711, 1125, 1185, 1975, 2133, 3375, 3555, 5925, 6241, 9875, 10665, 17775, 18723, 29625, 31205, 53325, 56169, 88875, 93615, 156025, 168507, 266625, 280845, 468075, 780125, 842535, 1404225, 2340375, 4212675, 7021125, 21063375]

約数ペア:

[(1, 21063375), (3, 7021125), (5, 4212675), (9, 2340375), (15, 1404225), (25, 842535), (27, 780125), (45, 468075), (75, 280845), (79, 266625), (125, 168507), (135, 156025), (225, 93615), (237, 88875), (375, 56169), (395, 53325), (675, 31205), (711, 29625), (1125, 18723), (1185, 17775), (1975, 10665), (2133, 9875), (3375, 6241), (3555, 5925)]