19991634

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{3511}}^1$

素因数の和:3602

約数の個数: 32

約数和(自身を含む): 43661184

約数和(自身を除く): 23669550

約数列:

[1, 2, 3, 6, 13, 26, 39, 73, 78, 146, 219, 438, 949, 1898, 2847, 3511, 5694, 7022, 10533, 21066, 45643, 91286, 136929, 256303, 273858, 512606, 768909, 1537818, 3331939, 6663878, 9995817, 19991634]

約数ペア:

[(1, 19991634), (2, 9995817), (3, 6663878), (6, 3331939), (13, 1537818), (26, 768909), (39, 512606), (73, 273858), (78, 256303), (146, 136929), (219, 91286), (438, 45643), (949, 21066), (1898, 10533), (2847, 7022), (3511, 5694)]