21255960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16103}}^1$

素因数の和:16128

約数の個数: 64

約数和(自身を含む): 69569280

約数和(自身を除く): 48313320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 16103, 32206, 48309, 64412, 80515, 96618, 128824, 161030, 177133, 193236, 241545, 322060, 354266, 386472, 483090, 531399, 644120, 708532, 885665, 966180, 1062798, 1417064, 1771330, 1932360, 2125596, 2656995, 3542660, 4251192, 5313990, 7085320, 10627980, 21255960]

約数ペア:

[(1, 21255960), (2, 10627980), (3, 7085320), (4, 5313990), (5, 4251192), (6, 3542660), (8, 2656995), (10, 2125596), (11, 1932360), (12, 1771330), (15, 1417064), (20, 1062798), (22, 966180), (24, 885665), (30, 708532), (33, 644120), (40, 531399), (44, 483090), (55, 386472), (60, 354266), (66, 322060), (88, 241545), (110, 193236), (120, 177133), (132, 161030), (165, 128824), (220, 96618), (264, 80515), (330, 64412), (440, 48309), (660, 32206), (1320, 16103)]