18974502

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:645

約数の個数: 48

約数和(自身を含む): 43758000

約数和(自身を除く): 24783498

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 109, 114, 171, 218, 327, 342, 509, 654, 981, 1018, 1527, 1962, 2071, 3054, 4142, 4581, 6213, 9162, 9671, 12426, 18639, 19342, 29013, 37278, 55481, 58026, 87039, 110962, 166443, 174078, 332886, 499329, 998658, 1054139, 2108278, 3162417, 6324834, 9487251, 18974502]

約数ペア:

[(1, 18974502), (2, 9487251), (3, 6324834), (6, 3162417), (9, 2108278), (18, 1054139), (19, 998658), (38, 499329), (57, 332886), (109, 174078), (114, 166443), (171, 110962), (218, 87039), (327, 58026), (342, 55481), (509, 37278), (654, 29013), (981, 19342), (1018, 18639), (1527, 12426), (1962, 9671), (2071, 9162), (3054, 6213), (4142, 4581)]