21715492785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{439}}^1\times {\mathrm{7723}}^1$

素因数の和:8238

約数の個数: 64

約数和(自身を含む): 40456458240

約数和(自身を除く): 18740965455

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 439, 915, 1281, 1317, 2135, 2195, 3073, 6405, 6585, 7723, 9219, 15365, 23169, 26779, 38615, 46095, 54061, 80337, 115845, 133895, 162183, 187453, 270305, 401685, 471103, 562359, 810915, 937265, 1413309, 2355515, 2811795, 3297721, 3390397, 7066545, 9893163, 10171191, 16488605, 16951985, 23732779, 49465815, 50855955, 71198337, 118663895, 206814217, 355991685, 620442651, 1034071085, 1447699519, 3102213255, 4343098557, 7238497595, 21715492785]

約数ペア:

[(1, 21715492785), (3, 7238497595), (5, 4343098557), (7, 3102213255), (15, 1447699519), (21, 1034071085), (35, 620442651), (61, 355991685), (105, 206814217), (183, 118663895), (305, 71198337), (427, 50855955), (439, 49465815), (915, 23732779), (1281, 16951985), (1317, 16488605), (2135, 10171191), (2195, 9893163), (3073, 7066545), (6405, 3390397), (6585, 3297721), (7723, 2811795), (9219, 2355515), (15365, 1413309), (23169, 937265), (26779, 810915), (38615, 562359), (46095, 471103), (54061, 401685), (80337, 270305), (115845, 187453), (133895, 162183)]