18874586

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{991}}^1$

素因数の和:1189

約数の個数: 16

約数和(自身を含む): 28926720

約数和(自身を除く): 10052134

約数列:

[1, 2, 89, 107, 178, 214, 991, 1982, 9523, 19046, 88199, 106037, 176398, 212074, 9437293, 18874586]

約数ペア:

[(1, 18874586), (2, 9437293), (89, 212074), (107, 176398), (178, 106037), (214, 88199), (991, 19046), (1982, 9523)]