21533640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{577}}^1$

素因数の和:902

約数の個数: 64

約数和(自身を含む): 64920960

約数和(自身を除く): 43387320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 311, 577, 622, 933, 1154, 1244, 1555, 1731, 1866, 2308, 2488, 2885, 3110, 3462, 3732, 4616, 4665, 5770, 6220, 6924, 7464, 8655, 9330, 11540, 12440, 13848, 17310, 18660, 23080, 34620, 37320, 69240, 179447, 358894, 538341, 717788, 897235, 1076682, 1435576, 1794470, 2153364, 2691705, 3588940, 4306728, 5383410, 7177880, 10766820, 21533640]

約数ペア:

[(1, 21533640), (2, 10766820), (3, 7177880), (4, 5383410), (5, 4306728), (6, 3588940), (8, 2691705), (10, 2153364), (12, 1794470), (15, 1435576), (20, 1076682), (24, 897235), (30, 717788), (40, 538341), (60, 358894), (120, 179447), (311, 69240), (577, 37320), (622, 34620), (933, 23080), (1154, 18660), (1244, 17310), (1555, 13848), (1731, 12440), (1866, 11540), (2308, 9330), (2488, 8655), (2885, 7464), (3110, 6924), (3462, 6220), (3732, 5770), (4616, 4665)]