21164880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{8017}}^1$

素因数の和:8044

約数の個数: 80

約数和(自身を含む): 71584704

約数和(自身を除く): 50419824

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 8017, 16034, 24051, 32068, 40085, 48102, 64136, 80170, 88187, 96204, 120255, 128272, 160340, 176374, 192408, 240510, 264561, 320680, 352748, 384816, 440935, 481020, 529122, 641360, 705496, 881870, 962040, 1058244, 1322805, 1410992, 1763740, 1924080, 2116488, 2645610, 3527480, 4232976, 5291220, 7054960, 10582440, 21164880]

約数ペア:

[(1, 21164880), (2, 10582440), (3, 7054960), (4, 5291220), (5, 4232976), (6, 3527480), (8, 2645610), (10, 2116488), (11, 1924080), (12, 1763740), (15, 1410992), (16, 1322805), (20, 1058244), (22, 962040), (24, 881870), (30, 705496), (33, 641360), (40, 529122), (44, 481020), (48, 440935), (55, 384816), (60, 352748), (66, 320680), (80, 264561), (88, 240510), (110, 192408), (120, 176374), (132, 160340), (165, 128272), (176, 120255), (220, 96204), (240, 88187), (264, 80170), (330, 64136), (440, 48102), (528, 40085), (660, 32068), (880, 24051), (1320, 16034), (2640, 8017)]