21677005

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{881}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 32175360

約数和(自身を除く): 10498355

約数列:

[1, 5, 7, 19, 35, 37, 95, 133, 185, 259, 665, 703, 881, 1295, 3515, 4405, 4921, 6167, 16739, 24605, 30835, 32597, 83695, 117173, 162985, 228179, 585865, 619343, 1140895, 3096715, 4335401, 21677005]

約数ペア:

[(1, 21677005), (5, 4335401), (7, 3096715), (19, 1140895), (35, 619343), (37, 585865), (95, 228179), (133, 162985), (185, 117173), (259, 83695), (665, 32597), (703, 30835), (881, 24605), (1295, 16739), (3515, 6167), (4405, 4921)]