19811004

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{401}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 48625920

約数和(自身を除く): 28814916

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 179, 276, 358, 401, 537, 716, 802, 1074, 1203, 1604, 2148, 2406, 4117, 4812, 8234, 9223, 12351, 16468, 18446, 24702, 27669, 36892, 49404, 55338, 71779, 110676, 143558, 215337, 287116, 430674, 861348, 1650917, 3301834, 4952751, 6603668, 9905502, 19811004]

約数ペア:

[(1, 19811004), (2, 9905502), (3, 6603668), (4, 4952751), (6, 3301834), (12, 1650917), (23, 861348), (46, 430674), (69, 287116), (92, 215337), (138, 143558), (179, 110676), (276, 71779), (358, 55338), (401, 49404), (537, 36892), (716, 27669), (802, 24702), (1074, 18446), (1203, 16468), (1604, 12351), (2148, 9223), (2406, 8234), (4117, 4812)]