19998732

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7541}}^1$

素因数の和:7578

約数の個数: 48

約数和(自身を含む): 53216352

約数和(自身を除く): 33217620

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 204, 221, 442, 663, 884, 1326, 2652, 7541, 15082, 22623, 30164, 45246, 90492, 98033, 128197, 196066, 256394, 294099, 384591, 392132, 512788, 588198, 769182, 1176396, 1538364, 1666561, 3333122, 4999683, 6666244, 9999366, 19998732]

約数ペア:

[(1, 19998732), (2, 9999366), (3, 6666244), (4, 4999683), (6, 3333122), (12, 1666561), (13, 1538364), (17, 1176396), (26, 769182), (34, 588198), (39, 512788), (51, 392132), (52, 384591), (68, 294099), (78, 256394), (102, 196066), (156, 128197), (204, 98033), (221, 90492), (442, 45246), (663, 30164), (884, 22623), (1326, 15082), (2652, 7541)]