221440611

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{739}}^1\times {\mathrm{751}}^1$

素因数の和:1519

約数の個数: 32

約数和(自身を含む): 356147200

約数和(自身を除く): 134706589

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 739, 751, 2217, 2253, 5173, 5257, 14041, 14269, 15519, 15771, 42123, 42807, 98287, 99883, 294861, 299649, 554989, 1664967, 3884923, 10544791, 11654769, 31634373, 73813537, 221440611]

約数ペア:

[(1, 221440611), (3, 73813537), (7, 31634373), (19, 11654769), (21, 10544791), (57, 3884923), (133, 1664967), (399, 554989), (739, 299649), (751, 294861), (2217, 99883), (2253, 98287), (5173, 42807), (5257, 42123), (14041, 15771), (14269, 15519)]