20787102

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{457}}^1$

素因数の和:510

約数の個数: 72

約数和(自身を含む): 54443376

約数和(自身を除く): 33656274

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 361, 399, 457, 722, 798, 914, 1083, 1197, 1371, 2166, 2394, 2527, 2742, 3199, 3249, 4113, 5054, 6398, 6498, 7581, 8226, 8683, 9597, 15162, 17366, 19194, 22743, 26049, 28791, 45486, 52098, 57582, 60781, 78147, 121562, 156294, 164977, 182343, 329954, 364686, 494931, 547029, 989862, 1094058, 1154839, 1484793, 2309678, 2969586, 3464517, 6929034, 10393551, 20787102]

約数ペア:

[(1, 20787102), (2, 10393551), (3, 6929034), (6, 3464517), (7, 2969586), (9, 2309678), (14, 1484793), (18, 1154839), (19, 1094058), (21, 989862), (38, 547029), (42, 494931), (57, 364686), (63, 329954), (114, 182343), (126, 164977), (133, 156294), (171, 121562), (266, 78147), (342, 60781), (361, 57582), (399, 52098), (457, 45486), (722, 28791), (798, 26049), (914, 22743), (1083, 19194), (1197, 17366), (1371, 15162), (2166, 9597), (2394, 8683), (2527, 8226), (2742, 7581), (3199, 6498), (3249, 6398), (4113, 5054)]