20447966

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{251}}^1$

素因数の和:317

約数の個数: 48

約数和(自身を含む): 40134528

約数和(自身を除く): 19686562

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 154, 161, 251, 253, 322, 502, 506, 529, 1058, 1757, 1771, 2761, 3514, 3542, 3703, 5522, 5773, 5819, 7406, 11546, 11638, 19327, 38654, 40411, 40733, 63503, 80822, 81466, 127006, 132779, 265558, 444521, 889042, 929453, 1460569, 1858906, 2921138, 10223983, 20447966]

約数ペア:

[(1, 20447966), (2, 10223983), (7, 2921138), (11, 1858906), (14, 1460569), (22, 929453), (23, 889042), (46, 444521), (77, 265558), (154, 132779), (161, 127006), (251, 81466), (253, 80822), (322, 63503), (502, 40733), (506, 40411), (529, 38654), (1058, 19327), (1757, 11638), (1771, 11546), (2761, 7406), (3514, 5819), (3542, 5773), (3703, 5522)]