201620421

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{541}}^1$

素因数の和:703

約数の個数: 40

約数和(自身を含む): 311645664

約数和(自身を除く): 110025243

約数列:

[1, 3, 9, 27, 43, 81, 107, 129, 321, 387, 541, 963, 1161, 1623, 2889, 3483, 4601, 4869, 8667, 13803, 14607, 23263, 41409, 43821, 57887, 69789, 124227, 173661, 209367, 372681, 520983, 628101, 1562949, 1884303, 2489141, 4688847, 7467423, 22402269, 67206807, 201620421]

約数ペア:

[(1, 201620421), (3, 67206807), (9, 22402269), (27, 7467423), (43, 4688847), (81, 2489141), (107, 1884303), (129, 1562949), (321, 628101), (387, 520983), (541, 372681), (963, 209367), (1161, 173661), (1623, 124227), (2889, 69789), (3483, 57887), (4601, 43821), (4869, 41409), (8667, 23263), (13803, 14607)]