18845644

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:494

約数の個数: 36

約数和(自身を含む): 36015168

約数和(自身を除く): 17169524

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 124, 361, 421, 589, 722, 842, 1178, 1444, 1684, 2356, 7999, 11191, 13051, 15998, 22382, 26102, 31996, 44764, 52204, 151981, 247969, 303962, 495938, 607924, 991876, 4711411, 9422822, 18845644]

約数ペア:

[(1, 18845644), (2, 9422822), (4, 4711411), (19, 991876), (31, 607924), (38, 495938), (62, 303962), (76, 247969), (124, 151981), (361, 52204), (421, 44764), (589, 31996), (722, 26102), (842, 22382), (1178, 15998), (1444, 13051), (1684, 11191), (2356, 7999)]