21150135

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{853}}^1$

素因数の和:912

約数の個数: 48

約数和(自身を含む): 39967200

約数和(自身を除く): 18817065

約数列:

[1, 3, 5, 9, 15, 19, 29, 45, 57, 87, 95, 145, 171, 261, 285, 435, 551, 853, 855, 1305, 1653, 2559, 2755, 4265, 4959, 7677, 8265, 12795, 16207, 24737, 24795, 38385, 48621, 74211, 81035, 123685, 145863, 222633, 243105, 371055, 470003, 729315, 1113165, 1410009, 2350015, 4230027, 7050045, 21150135]

約数ペア:

[(1, 21150135), (3, 7050045), (5, 4230027), (9, 2350015), (15, 1410009), (19, 1113165), (29, 729315), (45, 470003), (57, 371055), (87, 243105), (95, 222633), (145, 145863), (171, 123685), (261, 81035), (285, 74211), (435, 48621), (551, 38385), (853, 24795), (855, 24737), (1305, 16207), (1653, 12795), (2559, 8265), (2755, 7677), (4265, 4959)]