21685064

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3889}}^1$

素因数の和:3953

約数の個数: 32

約数和(自身を含む): 44112600

約数和(自身を除く): 22427536

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3889, 5576, 7778, 15556, 31112, 66113, 132226, 159449, 264452, 318898, 528904, 637796, 1275592, 2710633, 5421266, 10842532, 21685064]

約数ペア:

[(1, 21685064), (2, 10842532), (4, 5421266), (8, 2710633), (17, 1275592), (34, 637796), (41, 528904), (68, 318898), (82, 264452), (136, 159449), (164, 132226), (328, 66113), (697, 31112), (1394, 15556), (2788, 7778), (3889, 5576)]