18900784

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4561}}^1$

素因数の和:4613

約数の個数: 40

約数和(自身を含む): 42992288

約数和(自身を除く): 24091504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 4561, 9122, 18244, 31927, 36488, 63854, 72976, 127708, 168757, 255416, 337514, 510832, 675028, 1181299, 1350056, 2362598, 2700112, 4725196, 9450392, 18900784]

約数ペア:

[(1, 18900784), (2, 9450392), (4, 4725196), (7, 2700112), (8, 2362598), (14, 1350056), (16, 1181299), (28, 675028), (37, 510832), (56, 337514), (74, 255416), (112, 168757), (148, 127708), (259, 72976), (296, 63854), (518, 36488), (592, 31927), (1036, 18244), (2072, 9122), (4144, 4561)]