21404224

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:323

約数の個数: 56

約数和(自身を含む): 45646848

約数和(自身を除く): 24242624

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 103, 136, 191, 206, 272, 382, 412, 544, 764, 824, 1088, 1528, 1648, 1751, 3056, 3247, 3296, 3502, 6112, 6494, 6592, 7004, 12224, 12988, 14008, 19673, 25976, 28016, 39346, 51952, 56032, 78692, 103904, 112064, 157384, 207808, 314768, 334441, 629536, 668882, 1259072, 1337764, 2675528, 5351056, 10702112, 21404224]

約数ペア:

[(1, 21404224), (2, 10702112), (4, 5351056), (8, 2675528), (16, 1337764), (17, 1259072), (32, 668882), (34, 629536), (64, 334441), (68, 314768), (103, 207808), (136, 157384), (191, 112064), (206, 103904), (272, 78692), (382, 56032), (412, 51952), (544, 39346), (764, 28016), (824, 25976), (1088, 19673), (1528, 14008), (1648, 12988), (1751, 12224), (3056, 7004), (3247, 6592), (3296, 6494), (3502, 6112)]