20911394

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2143}}^1$

素因数の和:2210

約数の個数: 32

約数和(自身を含む): 38900736

約数和(自身を除く): 17989342

約数列:

[1, 2, 7, 14, 17, 34, 41, 82, 119, 238, 287, 574, 697, 1394, 2143, 4286, 4879, 9758, 15001, 30002, 36431, 72862, 87863, 175726, 255017, 510034, 615041, 1230082, 1493671, 2987342, 10455697, 20911394]

約数ペア:

[(1, 20911394), (2, 10455697), (7, 2987342), (14, 1493671), (17, 1230082), (34, 615041), (41, 510034), (82, 255017), (119, 175726), (238, 87863), (287, 72862), (574, 36431), (697, 30002), (1394, 15001), (2143, 9758), (4286, 4879)]