21298021236

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{1493}}^1\times {\mathrm{8431}}^1$

素因数の和:9981

約数の個数: 72

約数和(自身を含む): 55025478144

約数和(自身を除く): 33727456908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1493, 1692, 2986, 4479, 5972, 8431, 8958, 13437, 16862, 17916, 25293, 26874, 33724, 50586, 53748, 70171, 75879, 101172, 140342, 151758, 210513, 280684, 303516, 396257, 421026, 631539, 792514, 842052, 1188771, 1263078, 1585028, 2377542, 2526156, 3566313, 4755084, 7132626, 12587483, 14265252, 25174966, 37762449, 50349932, 75524898, 113287347, 151049796, 226574694, 453149388, 591611701, 1183223402, 1774835103, 2366446804, 3549670206, 5324505309, 7099340412, 10649010618, 21298021236]

約数ペア:

[(1, 21298021236), (2, 10649010618), (3, 7099340412), (4, 5324505309), (6, 3549670206), (9, 2366446804), (12, 1774835103), (18, 1183223402), (36, 591611701), (47, 453149388), (94, 226574694), (141, 151049796), (188, 113287347), (282, 75524898), (423, 50349932), (564, 37762449), (846, 25174966), (1493, 14265252), (1692, 12587483), (2986, 7132626), (4479, 4755084), (5972, 3566313), (8431, 2526156), (8958, 2377542), (13437, 1585028), (16862, 1263078), (17916, 1188771), (25293, 842052), (26874, 792514), (33724, 631539), (50586, 421026), (53748, 396257), (70171, 303516), (75879, 280684), (101172, 210513), (140342, 151758)]