19993768

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1301}}^1$

素因数の和:1437

約数の個数: 32

約数和(自身を含む): 40075560

約数和(自身を除く): 20081792

約数列:

[1, 2, 4, 8, 17, 34, 68, 113, 136, 226, 452, 904, 1301, 1921, 2602, 3842, 5204, 7684, 10408, 15368, 22117, 44234, 88468, 147013, 176936, 294026, 588052, 1176104, 2499221, 4998442, 9996884, 19993768]

約数ペア:

[(1, 19993768), (2, 9996884), (4, 4998442), (8, 2499221), (17, 1176104), (34, 588052), (68, 294026), (113, 176936), (136, 147013), (226, 88468), (452, 44234), (904, 22117), (1301, 15368), (1921, 10408), (2602, 7684), (3842, 5204)]