21721332

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2027}}^1$

素因数の和:2100

約数の個数: 48

約数和(自身を含む): 54512640

約数和(自身を除く): 32791308

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 47, 57, 76, 94, 114, 141, 188, 228, 282, 564, 893, 1786, 2027, 2679, 3572, 4054, 5358, 6081, 8108, 10716, 12162, 24324, 38513, 77026, 95269, 115539, 154052, 190538, 231078, 285807, 381076, 462156, 571614, 1143228, 1810111, 3620222, 5430333, 7240444, 10860666, 21721332]

約数ペア:

[(1, 21721332), (2, 10860666), (3, 7240444), (4, 5430333), (6, 3620222), (12, 1810111), (19, 1143228), (38, 571614), (47, 462156), (57, 381076), (76, 285807), (94, 231078), (114, 190538), (141, 154052), (188, 115539), (228, 95269), (282, 77026), (564, 38513), (893, 24324), (1786, 12162), (2027, 10716), (2679, 8108), (3572, 6081), (4054, 5358)]