18974175

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 34700160

約数和(自身を除く): 15725985

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 109, 165, 211, 275, 327, 545, 633, 825, 1055, 1199, 1635, 2321, 2725, 3165, 3597, 5275, 5995, 6963, 8175, 11605, 15825, 17985, 22999, 29975, 34815, 58025, 68997, 89925, 114995, 174075, 252989, 344985, 574975, 758967, 1264945, 1724925, 3794835, 6324725, 18974175]

約数ペア:

[(1, 18974175), (3, 6324725), (5, 3794835), (11, 1724925), (15, 1264945), (25, 758967), (33, 574975), (55, 344985), (75, 252989), (109, 174075), (165, 114995), (211, 89925), (275, 68997), (327, 58025), (545, 34815), (633, 29975), (825, 22999), (1055, 17985), (1199, 15825), (1635, 11605), (2321, 8175), (2725, 6963), (3165, 5995), (3597, 5275)]