21995264

素因数分解:

$2^8\times {\mathrm{151}}^1\times {\mathrm{569}}^1$

素因数の和:736

約数の個数: 36

約数和(自身を含む): 44273040

約数和(自身を除く): 22277776

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 151, 256, 302, 569, 604, 1138, 1208, 2276, 2416, 4552, 4832, 9104, 9664, 18208, 19328, 36416, 38656, 72832, 85919, 145664, 171838, 343676, 687352, 1374704, 2749408, 5498816, 10997632, 21995264]

約数ペア:

[(1, 21995264), (2, 10997632), (4, 5498816), (8, 2749408), (16, 1374704), (32, 687352), (64, 343676), (128, 171838), (151, 145664), (256, 85919), (302, 72832), (569, 38656), (604, 36416), (1138, 19328), (1208, 18208), (2276, 9664), (2416, 9104), (4552, 4832)]