21721230

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{80449}}^1$

素因数の和:80465

約数の個数: 32

約数和(自身を含む): 57924000

約数和(自身を除く): 36202770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 80449, 160898, 241347, 402245, 482694, 724041, 804490, 1206735, 1448082, 2172123, 2413470, 3620205, 4344246, 7240410, 10860615, 21721230]

約数ペア:

[(1, 21721230), (2, 10860615), (3, 7240410), (5, 4344246), (6, 3620205), (9, 2413470), (10, 2172123), (15, 1448082), (18, 1206735), (27, 804490), (30, 724041), (45, 482694), (54, 402245), (90, 241347), (135, 160898), (270, 80449)]