21208836

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 57286656

約数和(自身を除く): 36077820

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 31, 33, 44, 62, 66, 71, 73, 93, 124, 132, 142, 146, 186, 213, 219, 284, 292, 341, 372, 426, 438, 682, 781, 803, 852, 876, 1023, 1364, 1562, 1606, 2046, 2201, 2263, 2343, 2409, 3124, 3212, 4092, 4402, 4526, 4686, 4818, 5183, 6603, 6789, 8804, 9052, 9372, 9636, 10366, 13206, 13578, 15549, 20732, 24211, 24893, 26412, 27156, 31098, 48422, 49786, 57013, 62196, 72633, 74679, 96844, 99572, 114026, 145266, 149358, 160673, 171039, 228052, 290532, 298716, 321346, 342078, 482019, 642692, 684156, 964038, 1767403, 1928076, 3534806, 5302209, 7069612, 10604418, 21208836]

約数ペア:

[(1, 21208836), (2, 10604418), (3, 7069612), (4, 5302209), (6, 3534806), (11, 1928076), (12, 1767403), (22, 964038), (31, 684156), (33, 642692), (44, 482019), (62, 342078), (66, 321346), (71, 298716), (73, 290532), (93, 228052), (124, 171039), (132, 160673), (142, 149358), (146, 145266), (186, 114026), (213, 99572), (219, 96844), (284, 74679), (292, 72633), (341, 62196), (372, 57013), (426, 49786), (438, 48422), (682, 31098), (781, 27156), (803, 26412), (852, 24893), (876, 24211), (1023, 20732), (1364, 15549), (1562, 13578), (1606, 13206), (2046, 10366), (2201, 9636), (2263, 9372), (2343, 9052), (2409, 8804), (3124, 6789), (3212, 6603), (4092, 5183), (4402, 4818), (4526, 4686)]