18421568

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:351

約数の個数: 56

約数和(自身を含む): 40379904

約数和(自身を除く): 21958336

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 137, 176, 191, 274, 352, 382, 548, 704, 764, 1096, 1507, 1528, 2101, 2192, 3014, 3056, 4202, 4384, 6028, 6112, 8404, 8768, 12056, 12224, 16808, 24112, 26167, 33616, 48224, 52334, 67232, 96448, 104668, 134464, 209336, 287837, 418672, 575674, 837344, 1151348, 1674688, 2302696, 4605392, 9210784, 18421568]

約数ペア:

[(1, 18421568), (2, 9210784), (4, 4605392), (8, 2302696), (11, 1674688), (16, 1151348), (22, 837344), (32, 575674), (44, 418672), (64, 287837), (88, 209336), (137, 134464), (176, 104668), (191, 96448), (274, 67232), (352, 52334), (382, 48224), (548, 33616), (704, 26167), (764, 24112), (1096, 16808), (1507, 12224), (1528, 12056), (2101, 8768), (2192, 8404), (3014, 6112), (3056, 6028), (4202, 4384)]