21441994

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{541}}^1$

素因数の和:718

約数の個数: 32

約数和(自身を含む): 39024000

約数和(自身を除く): 17582006

約数列:

[1, 2, 7, 14, 19, 38, 133, 149, 266, 298, 541, 1043, 1082, 2086, 2831, 3787, 5662, 7574, 10279, 19817, 20558, 39634, 71953, 80609, 143906, 161218, 564263, 1128526, 1531571, 3063142, 10720997, 21441994]

約数ペア:

[(1, 21441994), (2, 10720997), (7, 3063142), (14, 1531571), (19, 1128526), (38, 564263), (133, 161218), (149, 143906), (266, 80609), (298, 71953), (541, 39634), (1043, 20558), (1082, 19817), (2086, 10279), (2831, 7574), (3787, 5662)]