18577478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 30707040

約数和(自身を除く): 12129562

約数列:

[1, 2, 19, 37, 38, 73, 74, 146, 181, 362, 703, 1387, 1406, 2701, 2774, 3439, 5402, 6697, 6878, 13213, 13394, 26426, 51319, 102638, 127243, 251047, 254486, 488881, 502094, 977762, 9288739, 18577478]

約数ペア:

[(1, 18577478), (2, 9288739), (19, 977762), (37, 502094), (38, 488881), (73, 254486), (74, 251047), (146, 127243), (181, 102638), (362, 51319), (703, 26426), (1387, 13394), (1406, 13213), (2701, 6878), (2774, 6697), (3439, 5402)]