21102180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31973}}^1$

素因数の和:31996

約数の個数: 48

約数和(自身を含む): 64459584

約数和(自身を除く): 43357404

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31973, 63946, 95919, 127892, 159865, 191838, 319730, 351703, 383676, 479595, 639460, 703406, 959190, 1055109, 1406812, 1758515, 1918380, 2110218, 3517030, 4220436, 5275545, 7034060, 10551090, 21102180]

約数ペア:

[(1, 21102180), (2, 10551090), (3, 7034060), (4, 5275545), (5, 4220436), (6, 3517030), (10, 2110218), (11, 1918380), (12, 1758515), (15, 1406812), (20, 1055109), (22, 959190), (30, 703406), (33, 639460), (44, 479595), (55, 383676), (60, 351703), (66, 319730), (110, 191838), (132, 159865), (165, 127892), (220, 95919), (330, 63946), (660, 31973)]