18619952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89519}}^1$

素因数の和:89540

約数の個数: 20

約数和(自身を含む): 38851680

約数和(自身を除く): 20231728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89519, 179038, 358076, 716152, 1163747, 1432304, 2327494, 4654988, 9309976, 18619952]

約数ペア:

[(1, 18619952), (2, 9309976), (4, 4654988), (8, 2327494), (13, 1432304), (16, 1163747), (26, 716152), (52, 358076), (104, 179038), (208, 89519)]