19318988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 20053492

約数列:

[1, 2, 4, 13, 23, 26, 29, 46, 52, 58, 92, 116, 299, 377, 557, 598, 667, 754, 1114, 1196, 1334, 1508, 2228, 2668, 7241, 8671, 12811, 14482, 16153, 17342, 25622, 28964, 32306, 34684, 51244, 64612, 166543, 209989, 333086, 371519, 419978, 666172, 743038, 839956, 1486076, 4829747, 9659494, 19318988]

約数ペア:

[(1, 19318988), (2, 9659494), (4, 4829747), (13, 1486076), (23, 839956), (26, 743038), (29, 666172), (46, 419978), (52, 371519), (58, 333086), (92, 209989), (116, 166543), (299, 64612), (377, 51244), (557, 34684), (598, 32306), (667, 28964), (754, 25622), (1114, 17342), (1196, 16153), (1334, 14482), (1508, 12811), (2228, 8671), (2668, 7241)]