21988966

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 36691200

約数和(自身を除く): 14702234

約数列:

[1, 2, 19, 23, 38, 46, 139, 181, 278, 362, 437, 874, 2641, 3197, 3439, 4163, 5282, 6394, 6878, 8326, 25159, 50318, 60743, 79097, 121486, 158194, 478021, 578657, 956042, 1157314, 10994483, 21988966]

約数ペア:

[(1, 21988966), (2, 10994483), (19, 1157314), (23, 956042), (38, 578657), (46, 478021), (139, 158194), (181, 121486), (278, 79097), (362, 60743), (437, 50318), (874, 25159), (2641, 8326), (3197, 6878), (3439, 6394), (4163, 5282)]