21111064

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4951}}^1$

素因数の和:5011

約数の個数: 32

約数和(自身を含む): 43676640

約数和(自身を除く): 22565576

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 4951, 9902, 19804, 39608, 64363, 128726, 202991, 257452, 405982, 514904, 811964, 1623928, 2638883, 5277766, 10555532, 21111064]

約数ペア:

[(1, 21111064), (2, 10555532), (4, 5277766), (8, 2638883), (13, 1623928), (26, 811964), (41, 514904), (52, 405982), (82, 257452), (104, 202991), (164, 128726), (328, 64363), (533, 39608), (1066, 19804), (2132, 9902), (4264, 4951)]