7907139

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 12638208

約数和(自身を除く): 4731069

約数列:

[1, 3, 9, 27, 31, 47, 67, 81, 93, 141, 201, 279, 423, 603, 837, 1269, 1457, 1809, 2077, 2511, 3149, 3807, 4371, 5427, 6231, 9447, 13113, 18693, 28341, 39339, 56079, 85023, 97619, 118017, 168237, 255069, 292857, 878571, 2635713, 7907139]

約数ペア:

[(1, 7907139), (3, 2635713), (9, 878571), (27, 292857), (31, 255069), (47, 168237), (67, 118017), (81, 97619), (93, 85023), (141, 56079), (201, 39339), (279, 28341), (423, 18693), (603, 13113), (837, 9447), (1269, 6231), (1457, 5427), (1809, 4371), (2077, 3807), (2511, 3149)]