19853574

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 45239040

約数和(自身を除く): 25385466

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 67, 78, 87, 131, 134, 174, 201, 262, 377, 393, 402, 754, 786, 871, 1131, 1703, 1742, 1943, 2262, 2613, 3406, 3799, 3886, 5109, 5226, 5829, 7598, 8777, 10218, 11397, 11658, 17554, 22794, 25259, 26331, 49387, 50518, 52662, 75777, 98774, 114101, 148161, 151554, 228202, 254533, 296322, 342303, 509066, 684606, 763599, 1527198, 3308929, 6617858, 9926787, 19853574]

約数ペア:

[(1, 19853574), (2, 9926787), (3, 6617858), (6, 3308929), (13, 1527198), (26, 763599), (29, 684606), (39, 509066), (58, 342303), (67, 296322), (78, 254533), (87, 228202), (131, 151554), (134, 148161), (174, 114101), (201, 98774), (262, 75777), (377, 52662), (393, 50518), (402, 49387), (754, 26331), (786, 25259), (871, 22794), (1131, 17554), (1703, 11658), (1742, 11397), (1943, 10218), (2262, 8777), (2613, 7598), (3406, 5829), (3799, 5226), (3886, 5109)]