21726540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10973}}^1$

素因数の和:10999

約数の個数: 72

約数和(自身を含む): 71901648

約数和(自身を除く): 50175108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10973, 21946, 32919, 43892, 54865, 65838, 98757, 109730, 120703, 131676, 164595, 197514, 219460, 241406, 329190, 362109, 395028, 482812, 493785, 603515, 658380, 724218, 987570, 1086327, 1207030, 1448436, 1810545, 1975140, 2172654, 2414060, 3621090, 4345308, 5431635, 7242180, 10863270, 21726540]

約数ペア:

[(1, 21726540), (2, 10863270), (3, 7242180), (4, 5431635), (5, 4345308), (6, 3621090), (9, 2414060), (10, 2172654), (11, 1975140), (12, 1810545), (15, 1448436), (18, 1207030), (20, 1086327), (22, 987570), (30, 724218), (33, 658380), (36, 603515), (44, 493785), (45, 482812), (55, 395028), (60, 362109), (66, 329190), (90, 241406), (99, 219460), (110, 197514), (132, 164595), (165, 131676), (180, 120703), (198, 109730), (220, 98757), (330, 65838), (396, 54865), (495, 43892), (660, 32919), (990, 21946), (1980, 10973)]