19647628

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{701}}^1$

素因数の和:743

約数の個数: 72

約数和(自身を含む): 47056464

約数和(自身を除く): 27408836

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 701, 1001, 1078, 1274, 1402, 2002, 2156, 2548, 2804, 4004, 4907, 7007, 7711, 9113, 9814, 14014, 15422, 18226, 19628, 28028, 30844, 34349, 36452, 53977, 63791, 68698, 100243, 107954, 127582, 137396, 200486, 215908, 255164, 377839, 400972, 446537, 701701, 755678, 893074, 1403402, 1511356, 1786148, 2806804, 4911907, 9823814, 19647628]

約数ペア:

[(1, 19647628), (2, 9823814), (4, 4911907), (7, 2806804), (11, 1786148), (13, 1511356), (14, 1403402), (22, 893074), (26, 755678), (28, 701701), (44, 446537), (49, 400972), (52, 377839), (77, 255164), (91, 215908), (98, 200486), (143, 137396), (154, 127582), (182, 107954), (196, 100243), (286, 68698), (308, 63791), (364, 53977), (539, 36452), (572, 34349), (637, 30844), (701, 28028), (1001, 19628), (1078, 18226), (1274, 15422), (1402, 14014), (2002, 9814), (2156, 9113), (2548, 7711), (2804, 7007), (4004, 4907)]