20753145

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21961}}^1$

素因数の和:21982

約数の個数: 32

約数和(自身を含む): 42167040

約数和(自身を除く): 21413895

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21961, 65883, 109805, 153727, 197649, 329415, 461181, 592947, 768635, 988245, 1383543, 2305905, 2964735, 4150629, 6917715, 20753145]

約数ペア:

[(1, 20753145), (3, 6917715), (5, 4150629), (7, 2964735), (9, 2305905), (15, 1383543), (21, 988245), (27, 768635), (35, 592947), (45, 461181), (63, 329415), (105, 197649), (135, 153727), (189, 109805), (315, 65883), (945, 21961)]