18420766

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:809

約数の個数: 48

約数和(自身を含む): 36484560

約数和(自身を除く): 18063794

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 133, 182, 247, 266, 494, 637, 761, 931, 1274, 1522, 1729, 1862, 3458, 5327, 9893, 10654, 12103, 14459, 19786, 24206, 28918, 37289, 69251, 74578, 101213, 138502, 187967, 202426, 375934, 484757, 708491, 969514, 1315769, 1416982, 2631538, 9210383, 18420766]

約数ペア:

[(1, 18420766), (2, 9210383), (7, 2631538), (13, 1416982), (14, 1315769), (19, 969514), (26, 708491), (38, 484757), (49, 375934), (91, 202426), (98, 187967), (133, 138502), (182, 101213), (247, 74578), (266, 69251), (494, 37289), (637, 28918), (761, 24206), (931, 19786), (1274, 14459), (1522, 12103), (1729, 10654), (1862, 9893), (3458, 5327)]