19906888

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{617}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 38748600

約数和(自身を除く): 18841712

約数列:

[1, 2, 4, 8, 37, 74, 109, 148, 218, 296, 436, 617, 872, 1234, 2468, 4033, 4936, 8066, 16132, 22829, 32264, 45658, 67253, 91316, 134506, 182632, 269012, 538024, 2488361, 4976722, 9953444, 19906888]

約数ペア:

[(1, 19906888), (2, 9953444), (4, 4976722), (8, 2488361), (37, 538024), (74, 269012), (109, 182632), (148, 134506), (218, 91316), (296, 67253), (436, 45658), (617, 32264), (872, 22829), (1234, 16132), (2468, 8066), (4033, 4936)]