19790368

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{421}}^1$

素因数の和:557

約数の個数: 48

約数和(自身を含む): 42431256

約数和(自身を除く): 22640888

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 113, 208, 226, 416, 421, 452, 842, 904, 1469, 1684, 1808, 2938, 3368, 3616, 5473, 5876, 6736, 10946, 11752, 13472, 21892, 23504, 43784, 47008, 47573, 87568, 95146, 175136, 190292, 380584, 618449, 761168, 1236898, 1522336, 2473796, 4947592, 9895184, 19790368]

約数ペア:

[(1, 19790368), (2, 9895184), (4, 4947592), (8, 2473796), (13, 1522336), (16, 1236898), (26, 761168), (32, 618449), (52, 380584), (104, 190292), (113, 175136), (208, 95146), (226, 87568), (416, 47573), (421, 47008), (452, 43784), (842, 23504), (904, 21892), (1469, 13472), (1684, 11752), (1808, 10946), (2938, 6736), (3368, 5876), (3616, 5473)]