31217706

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1879}}^1$

素因数の和:1971

約数の個数: 48

約数和(自身を含む): 73906560

約数和(自身を除く): 42688854

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 213, 234, 426, 639, 923, 1278, 1846, 1879, 2769, 3758, 5538, 5637, 8307, 11274, 16614, 16911, 24427, 33822, 48854, 73281, 133409, 146562, 219843, 266818, 400227, 439686, 800454, 1200681, 1734317, 2401362, 3468634, 5202951, 10405902, 15608853, 31217706]

約数ペア:

[(1, 31217706), (2, 15608853), (3, 10405902), (6, 5202951), (9, 3468634), (13, 2401362), (18, 1734317), (26, 1200681), (39, 800454), (71, 439686), (78, 400227), (117, 266818), (142, 219843), (213, 146562), (234, 133409), (426, 73281), (639, 48854), (923, 33822), (1278, 24427), (1846, 16911), (1879, 16614), (2769, 11274), (3758, 8307), (5538, 5637)]