19478116

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 43013376

約数和(自身を除く): 23535260

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 47, 76, 82, 94, 133, 164, 188, 266, 287, 329, 361, 532, 574, 658, 722, 779, 893, 1148, 1316, 1444, 1558, 1786, 1927, 2527, 3116, 3572, 3854, 5054, 5453, 6251, 7708, 10108, 10906, 12502, 13489, 14801, 16967, 21812, 25004, 26978, 29602, 33934, 36613, 53956, 59204, 67868, 73226, 103607, 118769, 146452, 207214, 237538, 256291, 414428, 475076, 512582, 695647, 1025164, 1391294, 2782588, 4869529, 9739058, 19478116]

約数ペア:

[(1, 19478116), (2, 9739058), (4, 4869529), (7, 2782588), (14, 1391294), (19, 1025164), (28, 695647), (38, 512582), (41, 475076), (47, 414428), (76, 256291), (82, 237538), (94, 207214), (133, 146452), (164, 118769), (188, 103607), (266, 73226), (287, 67868), (329, 59204), (361, 53956), (532, 36613), (574, 33934), (658, 29602), (722, 26978), (779, 25004), (893, 21812), (1148, 16967), (1316, 14801), (1444, 13489), (1558, 12502), (1786, 10906), (1927, 10108), (2527, 7708), (3116, 6251), (3572, 5453), (3854, 5054)]