21158720

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6011}}^1$

素因数の和:6039

約数の個数: 56

約数和(自身を含む): 54973728

約数和(自身を除く): 33815008

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 6011, 12022, 24044, 30055, 48088, 60110, 66121, 96176, 120220, 132242, 192352, 240440, 264484, 330605, 384704, 480880, 528968, 661210, 961760, 1057936, 1322420, 1923520, 2115872, 2644840, 4231744, 5289680, 10579360, 21158720]

約数ペア:

[(1, 21158720), (2, 10579360), (4, 5289680), (5, 4231744), (8, 2644840), (10, 2115872), (11, 1923520), (16, 1322420), (20, 1057936), (22, 961760), (32, 661210), (40, 528968), (44, 480880), (55, 384704), (64, 330605), (80, 264484), (88, 240440), (110, 192352), (160, 132242), (176, 120220), (220, 96176), (320, 66121), (352, 60110), (440, 48088), (704, 30055), (880, 24044), (1760, 12022), (3520, 6011)]