31917438

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{137}}^1$

素因数の和:238

約数の個数: 72

約数和(自身を含む): 81505008

約数和(自身を除く): 49587570

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 126, 129, 137, 258, 274, 301, 387, 411, 602, 774, 822, 903, 959, 1233, 1806, 1849, 1918, 2466, 2709, 2877, 3698, 5418, 5547, 5754, 5891, 8631, 11094, 11782, 12943, 16641, 17262, 17673, 25886, 33282, 35346, 38829, 41237, 53019, 77658, 82474, 106038, 116487, 123711, 232974, 247422, 253313, 371133, 506626, 742266, 759939, 1519878, 1773191, 2279817, 3546382, 4559634, 5319573, 10639146, 15958719, 31917438]

約数ペア:

[(1, 31917438), (2, 15958719), (3, 10639146), (6, 5319573), (7, 4559634), (9, 3546382), (14, 2279817), (18, 1773191), (21, 1519878), (42, 759939), (43, 742266), (63, 506626), (86, 371133), (126, 253313), (129, 247422), (137, 232974), (258, 123711), (274, 116487), (301, 106038), (387, 82474), (411, 77658), (602, 53019), (774, 41237), (822, 38829), (903, 35346), (959, 33282), (1233, 25886), (1806, 17673), (1849, 17262), (1918, 16641), (2466, 12943), (2709, 11782), (2877, 11094), (3698, 8631), (5418, 5891), (5547, 5754)]