19976572

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 44190720

約数和(自身を除く): 24214148

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 79, 154, 158, 308, 316, 553, 821, 869, 1106, 1642, 1738, 2212, 3284, 3476, 5747, 6083, 9031, 11494, 12166, 18062, 22988, 24332, 36124, 63217, 64859, 126434, 129718, 252868, 259436, 454013, 713449, 908026, 1426898, 1816052, 2853796, 4994143, 9988286, 19976572]

約数ペア:

[(1, 19976572), (2, 9988286), (4, 4994143), (7, 2853796), (11, 1816052), (14, 1426898), (22, 908026), (28, 713449), (44, 454013), (77, 259436), (79, 252868), (154, 129718), (158, 126434), (308, 64859), (316, 63217), (553, 36124), (821, 24332), (869, 22988), (1106, 18062), (1642, 12166), (1738, 11494), (2212, 9031), (3284, 6083), (3476, 5747)]