15382913

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 21450240

約数和(自身を除く): 6067327

約数列:

[1, 7, 13, 19, 31, 41, 49, 91, 133, 217, 247, 287, 403, 533, 589, 637, 779, 931, 1271, 1519, 1729, 2009, 2821, 3731, 4123, 5453, 7657, 8897, 10127, 12103, 16523, 19747, 24149, 26117, 28861, 38171, 53599, 62279, 70889, 115661, 169043, 313937, 375193, 496223, 809627, 1183301, 2197559, 15382913]

約数ペア:

[(1, 15382913), (7, 2197559), (13, 1183301), (19, 809627), (31, 496223), (41, 375193), (49, 313937), (91, 169043), (133, 115661), (217, 70889), (247, 62279), (287, 53599), (403, 38171), (533, 28861), (589, 26117), (637, 24149), (779, 19747), (931, 16523), (1271, 12103), (1519, 10127), (1729, 8897), (2009, 7657), (2821, 5453), (3731, 4123)]