21503872

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12923}}^1$

素因数の和:12950

約数の個数: 32

約数和(自身を含む): 46138680

約数和(自身を除く): 24634808

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12923, 25846, 51692, 103384, 167999, 206768, 335998, 413536, 671996, 827072, 1343992, 1654144, 2687984, 5375968, 10751936, 21503872]

約数ペア:

[(1, 21503872), (2, 10751936), (4, 5375968), (8, 2687984), (13, 1654144), (16, 1343992), (26, 827072), (32, 671996), (52, 413536), (64, 335998), (104, 206768), (128, 167999), (208, 103384), (416, 51692), (832, 25846), (1664, 12923)]