15993117

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 28753920

約数和(自身を除く): 12760803

約数列:

[1, 3, 7, 9, 19, 21, 31, 57, 63, 93, 133, 171, 217, 279, 399, 431, 589, 651, 1197, 1293, 1767, 1953, 3017, 3879, 4123, 5301, 8189, 9051, 12369, 13361, 24567, 27153, 37107, 40083, 57323, 73701, 93527, 120249, 171969, 253859, 280581, 515907, 761577, 841743, 1777013, 2284731, 5331039, 15993117]

約数ペア:

[(1, 15993117), (3, 5331039), (7, 2284731), (9, 1777013), (19, 841743), (21, 761577), (31, 515907), (57, 280581), (63, 253859), (93, 171969), (133, 120249), (171, 93527), (217, 73701), (279, 57323), (399, 40083), (431, 37107), (589, 27153), (651, 24567), (1197, 13361), (1293, 12369), (1767, 9051), (1953, 8189), (3017, 5301), (3879, 4123)]