51359679

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 90305280

約数和(自身を除く): 38945601

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 107, 133, 171, 321, 399, 401, 749, 963, 1197, 1203, 2033, 2247, 2807, 3609, 6099, 6741, 7619, 8421, 14231, 18297, 22857, 25263, 42693, 42907, 53333, 68571, 128079, 128721, 159999, 300349, 386163, 479997, 815233, 901047, 2445699, 2703141, 5706631, 7337097, 17119893, 51359679]

約数ペア:

[(1, 51359679), (3, 17119893), (7, 7337097), (9, 5706631), (19, 2703141), (21, 2445699), (57, 901047), (63, 815233), (107, 479997), (133, 386163), (171, 300349), (321, 159999), (399, 128721), (401, 128079), (749, 68571), (963, 53333), (1197, 42907), (1203, 42693), (2033, 25263), (2247, 22857), (2807, 18297), (3609, 14231), (6099, 8421), (6741, 7619)]