21081336

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{557}}^1$

素因数の和:668

約数の個数: 64

約数和(自身を含む): 56246400

約数和(自身を除く): 35165064

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 83, 114, 152, 166, 228, 249, 332, 456, 498, 557, 664, 996, 1114, 1577, 1671, 1992, 2228, 3154, 3342, 4456, 4731, 6308, 6684, 9462, 10583, 12616, 13368, 18924, 21166, 31749, 37848, 42332, 46231, 63498, 84664, 92462, 126996, 138693, 184924, 253992, 277386, 369848, 554772, 878389, 1109544, 1756778, 2635167, 3513556, 5270334, 7027112, 10540668, 21081336]

約数ペア:

[(1, 21081336), (2, 10540668), (3, 7027112), (4, 5270334), (6, 3513556), (8, 2635167), (12, 1756778), (19, 1109544), (24, 878389), (38, 554772), (57, 369848), (76, 277386), (83, 253992), (114, 184924), (152, 138693), (166, 126996), (228, 92462), (249, 84664), (332, 63498), (456, 46231), (498, 42332), (557, 37848), (664, 31749), (996, 21166), (1114, 18924), (1577, 13368), (1671, 12616), (1992, 10583), (2228, 9462), (3154, 6684), (3342, 6308), (4456, 4731)]