21191872

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{25471}}^1$

素因数の和:25496

約数の個数: 28

約数和(自身を含む): 45289216

約数和(自身を除く): 24097344

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 25471, 50942, 101884, 203768, 331123, 407536, 662246, 815072, 1324492, 1630144, 2648984, 5297968, 10595936, 21191872]

約数ペア:

[(1, 21191872), (2, 10595936), (4, 5297968), (8, 2648984), (13, 1630144), (16, 1324492), (26, 815072), (32, 662246), (52, 407536), (64, 331123), (104, 203768), (208, 101884), (416, 50942), (832, 25471)]