21860520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16561}}^1$

素因数の和:16586

約数の個数: 64

約数和(自身を含む): 71547840

約数和(自身を除く): 49687320

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, 16561, 33122, 49683, 66244, 82805, 99366, 132488, 165610, 182171, 198732, 248415, 331220, 364342, 397464, 496830, 546513, 662440, 728684, 910855, 993660, 1093026, 1457368, 1821710, 1987320, 2186052, 2732565, 3643420, 4372104, 5465130, 7286840, 10930260, 21860520]

約数ペア:

[(1, 21860520), (2, 10930260), (3, 7286840), (4, 5465130), (5, 4372104), (6, 3643420), (8, 2732565), (10, 2186052), (11, 1987320), (12, 1821710), (15, 1457368), (20, 1093026), (22, 993660), (24, 910855), (30, 728684), (33, 662440), (40, 546513), (44, 496830), (55, 397464), (60, 364342), (66, 331220), (88, 248415), (110, 198732), (120, 182171), (132, 165610), (165, 132488), (220, 99366), (264, 82805), (330, 66244), (440, 49683), (660, 33122), (1320, 16561)]