18993996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3967}}^1$

素因数の和:4003

約数の個数: 72

約数和(自身を含む): 57774080

約数和(自身を除く): 38780084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 57, 63, 76, 84, 114, 126, 133, 171, 228, 252, 266, 342, 399, 532, 684, 798, 1197, 1596, 2394, 3967, 4788, 7934, 11901, 15868, 23802, 27769, 35703, 47604, 55538, 71406, 75373, 83307, 111076, 142812, 150746, 166614, 226119, 249921, 301492, 333228, 452238, 499842, 527611, 678357, 904476, 999684, 1055222, 1356714, 1582833, 2110444, 2713428, 3165666, 4748499, 6331332, 9496998, 18993996]

約数ペア:

[(1, 18993996), (2, 9496998), (3, 6331332), (4, 4748499), (6, 3165666), (7, 2713428), (9, 2110444), (12, 1582833), (14, 1356714), (18, 1055222), (19, 999684), (21, 904476), (28, 678357), (36, 527611), (38, 499842), (42, 452238), (57, 333228), (63, 301492), (76, 249921), (84, 226119), (114, 166614), (126, 150746), (133, 142812), (171, 111076), (228, 83307), (252, 75373), (266, 71406), (342, 55538), (399, 47604), (532, 35703), (684, 27769), (798, 23802), (1197, 15868), (1596, 11901), (2394, 7934), (3967, 4788)]