189908378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{4217}}^1$

素因数の和:4342

約数の個数: 32

約数和(自身を含む): 327991680

約数和(自身を除く): 138083302

約数列:

[1, 2, 11, 22, 23, 46, 89, 178, 253, 506, 979, 1958, 2047, 4094, 4217, 8434, 22517, 45034, 46387, 92774, 96991, 193982, 375313, 750626, 1066901, 2133802, 4128443, 8256886, 8632199, 17264398, 94954189, 189908378]

約数ペア:

[(1, 189908378), (2, 94954189), (11, 17264398), (22, 8632199), (23, 8256886), (46, 4128443), (89, 2133802), (178, 1066901), (253, 750626), (506, 375313), (979, 193982), (1958, 96991), (2047, 92774), (4094, 46387), (4217, 45034), (8434, 22517)]