21999156084

素因数分解:

$2^2\times 3^2\times {\mathrm{10139}}^1\times {\mathrm{60271}}^1$

素因数の和:70420

約数の個数: 36

約数和(自身を含む): 55615385280

約数和(自身を除く): 33616229196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 10139, 20278, 30417, 40556, 60271, 60834, 91251, 120542, 121668, 180813, 182502, 241084, 361626, 365004, 542439, 723252, 1084878, 2169756, 611087669, 1222175338, 1833263007, 2444350676, 3666526014, 5499789021, 7333052028, 10999578042, 21999156084]

約数ペア:

[(1, 21999156084), (2, 10999578042), (3, 7333052028), (4, 5499789021), (6, 3666526014), (9, 2444350676), (12, 1833263007), (18, 1222175338), (36, 611087669), (10139, 2169756), (20278, 1084878), (30417, 723252), (40556, 542439), (60271, 365004), (60834, 361626), (91251, 241084), (120542, 182502), (121668, 180813)]