19970262

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2753}}^1$

素因数の和:2805

約数の個数: 48

約数和(自身を含む): 48117888

約数和(自身を除く): 28147626

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 93, 117, 186, 234, 279, 403, 558, 806, 1209, 2418, 2753, 3627, 5506, 7254, 8259, 16518, 24777, 35789, 49554, 71578, 85343, 107367, 170686, 214734, 256029, 322101, 512058, 644202, 768087, 1109459, 1536174, 2218918, 3328377, 6656754, 9985131, 19970262]

約数ペア:

[(1, 19970262), (2, 9985131), (3, 6656754), (6, 3328377), (9, 2218918), (13, 1536174), (18, 1109459), (26, 768087), (31, 644202), (39, 512058), (62, 322101), (78, 256029), (93, 214734), (117, 170686), (186, 107367), (234, 85343), (279, 71578), (403, 49554), (558, 35789), (806, 24777), (1209, 16518), (2418, 8259), (2753, 7254), (3627, 5506)]