19926218788

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{34361}}^1$

素因数の和:34660

約数の個数: 48

約数和(自身を含む): 40409712000

約数和(自身を除く): 20483493212

約数列:

[1, 2, 4, 7, 14, 28, 139, 149, 278, 298, 556, 596, 973, 1043, 1946, 2086, 3892, 4172, 20711, 34361, 41422, 68722, 82844, 137444, 144977, 240527, 289954, 481054, 579908, 962108, 4776179, 5119789, 9552358, 10239578, 19104716, 20479156, 33433253, 35838523, 66866506, 71677046, 133733012, 143354092, 711650671, 1423301342, 2846602684, 4981554697, 9963109394, 19926218788]

約数ペア:

[(1, 19926218788), (2, 9963109394), (4, 4981554697), (7, 2846602684), (14, 1423301342), (28, 711650671), (139, 143354092), (149, 133733012), (278, 71677046), (298, 66866506), (556, 35838523), (596, 33433253), (973, 20479156), (1043, 19104716), (1946, 10239578), (2086, 9552358), (3892, 5119789), (4172, 4776179), (20711, 962108), (34361, 579908), (41422, 481054), (68722, 289954), (82844, 240527), (137444, 144977)]